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green · warm

#ecffb3

a pale, electric green · warm · closest name: Pale Goldenrod

Token name suggestion: Mist Basil

RGB
236, 255, 179
HSL
75°, 100%, 85%
CMYK
8, 0, 30, 0
Luminance
0.9261

#ecffb3 is a pale electric green, 75° on the wheel and 38/100 on the cool side. Put black text on it (19.52:1). As text it scores 1.08:1 on white — use #608000 instead. Nearest name is Pale Goldenrod, nearest Tailwind family is lime.

hsl(75 100% 85%)rgb(236 255 179)Base step 200AAA inkWarm

At a glance

Every number on this page in one read: what #ecffb3 is made of, how bright it looks, and which way it leans.

Hex
#ecffb3
Hue
75°
green
Saturation
100%
electric
Lightness
85%
pale
Brightness
100%
HSV value
Perceived
95%
weighted brightness
Luminance
0.9261
WCAG relative
Temperature
Warm
38/100 cool
Color family
Green
Tone
Electric
Best ink
Black
19.52:1
Closest name
Pale Goldenrod
ΔE2000 7.6
Chroma
38.9
LCH, 0–130ish
OKLCH L
0.968
perceptual lightness
Tailwind
lime
500 · ΔE 19.1
Web-safe
#FFFFCC
nearest of 216
Where it sits
Hue75° of 360°
Saturation100%
Lightness85%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #ecffb3.

Temperature
Warm ← → Cool38% cool

Reads warm. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red19%
Green77%
Blue4%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#ecffb3
HEX (8-digit)#ecffb3ff
RGBrgb(236, 255, 179)
RGBArgba(236, 255, 179, 1)
HSLhsl(75, 100%, 85%)
HSV / HSBhsv(75, 30%, 100%)
HWBhwb(75 70% 0%)
CMYKcmyk(8%, 0%, 30%, 0%)
LABlab(97.1 -18.3 34.3)
LCHlch(97.1 38.9 118.0)
OKLCHoklch(0.968 0.099 119.7)
XYZ (D65)xyz(78.49, 92.61, 56.38)
Decimal15531955
Display P3color(display-p3 0.925 1.000 0.702)
Web-safe#FFFFCC

Copy-ready code

every platformclick to select
/* CSS */
color: #ecffb3;
background-color: #ecffb3;
/* CSS custom property */
--brand: #ecffb3;
/* Tailwind (arbitrary) */
class="text-[#ecffb3] bg-[#ecffb3]"
/* SCSS */
$brand: #ecffb3;
/* SwiftUI */
Color(red: 0.925, green: 1.000, blue: 0.702)
/* UIKit */
UIColor(red: 0.925, green: 1.000, blue: 0.702, alpha: 1)
/* Android XML */
<color name="brand">#ECFFB3</color>
/* Android Compose */
Color(0xFFECFFB3)
/* Flutter */
Color(0xFFECFFB3)
/* Python / OpenCV (BGR) */
(179, 255, 236)
/* Python / PIL (RGB) */
(236, 255, 179)
/* Java AWT */
new Color(236, 255, 179)
/* .NET */
Color.FromArgb(255, 236, 255, 179)
/* OpenGL / Unity (0–1) */
(0.9255f, 1.0000f, 0.7020f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{236,255,179}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #ecffb3 85%, white);
border-color: color-mix(in oklab, #ecffb3 40%, transparent);
/* theme-aware in one line */
color: light-dark(#608000, #E7EED3);
/* relative colour syntax */
--hover: hsl(from #ecffb3 h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #FAFEF1;
  --brand-100: #F6FCE3;
  --brand-200: #ecffb3;
  --brand-300: #E3FF8F;
  --brand-400: #D5FF57;
  --brand-500: #C7FF1F;
  --brand-600: #B8F500;
  --brand-700: #99CC00;
  --brand-800: #7AA300;
  --brand-900: #597605;
  --brand-950: #384903;
  --brand: #ecffb3;
  --brand-ink: #000000;
  --brand-surface: #F9FAF4;
  --brand-border: #E1EDC0;
  --brand-hover: #E3FF8F;
  --brand-pressed: #DAFF6C;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #202414;
    --brand-ink: #E7EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FAFEF1',
        100: '#F6FCE3',
        200: '#ecffb3',
        300: '#E3FF8F',
        400: '#D5FF57',
        500: '#C7FF1F',
        600: '#B8F500',
        700: '#99CC00',
        800: '#7AA300',
        900: '#597605',
        950: '#384903',
        DEFAULT: '#ecffb3',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FAFEF1,
  '100': #F6FCE3,
  '200': #ecffb3,
  '300': #E3FF8F,
  '400': #D5FF57,
  '500': #C7FF1F,
  '600': #B8F500,
  '700': #99CC00,
  '800': #7AA300,
  '900': #597605,
  '950': #384903,
);
$brand-base: #ecffb3;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FAFEF1", "$type": "color" },
      "100": { "$value": "#F6FCE3", "$type": "color" },
      "200": { "$value": "#ecffb3", "$type": "color" },
      "300": { "$value": "#E3FF8F", "$type": "color" },
      "400": { "$value": "#D5FF57", "$type": "color" },
      "500": { "$value": "#C7FF1F", "$type": "color" },
      "600": { "$value": "#B8F500", "$type": "color" },
      "700": { "$value": "#99CC00", "$type": "color" },
      "800": { "$value": "#7AA300", "$type": "color" },
      "900": { "$value": "#597605", "$type": "color" },
      "950": { "$value": "#384903", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #ecffb3 · 19.52:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.08:1
AA fail · AA large fail · AAA fail
Aa
Black text · 19.52:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #ecffb3 as text scores 1.08:1 on white and 19.52:1 on black.
Best tinted ink on it, if plain black or white feels flat: #608000 at 4.26:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#608000 · 4.58:1
AA on white−60% L
#608000
The quick fox
#496100 · 7.02:1
AAA on white−66% L
#496100
The quick fox
#ecffb3 · 19.52:1
AA on blackalready passes
#ecffb3
The quick fox
#ecffb3 · 19.52:1
AAA on blackalready passes
#ecffb3

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #779F00 is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#ecffb3 on white: 1.08:1
AA ✗ fail · AA-large · AAA
Aa
#ecffb3 on black: 19.52:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #ecffb3 as text on that neutral, and that neutral as text on #ecffb3.

NeutralRatioBoth directions
White1.08:1AaAa
Slate 501.03:1AaAa
Slate 1001.02:1AaAa
Slate 2001.15:1AaAa
Slate 3001.38:1AaAa
Slate 4002.38:1AaAa
Slate 5004.42:1AaAa
Slate 6007.04:1AaAa
Slate 7009.63:1AaAa
Slate 80013.60:1AaAa
Slate 90016.60:1AaAa
Black19.52:1AaAa
Colour vision deficiency
true color
protanopia · #FFF7AE
deuteranopia · #FFF7B6
tritanopia · #F3F7EB

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #ecffb3 is pinned to step 200; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FAFEF1
#F6FCE3
#ecffb3
#E3FF8F
#D5FF57
#C7FF1F
#B8F500
#99CC00
#7AA300
#597605
#384903
Base = 200Lightest = 50 · #FAFEF1Darkest = 950 · #384903Text step on white = 900
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.025 119.7);
  --brand-100: oklch(0.94 0.040 119.7);
  --brand-200: oklch(0.88 0.059 119.7);
  --brand-300: oklch(0.80 0.077 119.7);
  --brand-400: oklch(0.72 0.091 119.7);
  --brand-500: oklch(0.64 0.099 119.7);
  --brand-600: oklch(0.56 0.099 119.7);
  --brand-700: oklch(0.48 0.093 119.7);
  --brand-800: oklch(0.40 0.083 119.7);
  --brand-900: oklch(0.32 0.069 119.7);
  --brand-950: oklch(0.24 0.054 119.7);
}

Colors that work with #ecffb3

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F9FAF4
Tinted page background
Border#E1EDC0
Hairlines and dividers
Muted text#879B4B
Captions on the surface
Accent#0000CC
Second voice, not a rival
Dark variant#608000
Hover, pressed, headers
Light variant#F9FFE5
Selected rows, tints
Dark surface#202414
Dark-mode background
Hover#E3FF8F
One step down in lightness
Pressed#DAFF6C
Two steps down
Disabled#F6F7F3
Chroma pulled out
Focus ring#F1FFC7
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #ecffb3

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • White text placed on it
  • Status meaning — pair it with an icon or label, never colour alone
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #608000
Safe as a 1px border on white
No — use #779F00

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

safegrowingnaturalpermissive

Green means go, well, and grown. It carries finance, sustainability and health with almost no explanation needed.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The high lightness makes it recede — a surface colour rather than a statement.

Worth knowing

Red/green pairs are the most common colour-blindness failure — never let the two carry meaning alone.

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight15/100
  • TemperatureWarm
  • ApproachabilityHigh

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#C6B3FF
Analogous left#FFECB3
Analogous right#C6FFB3
Split-complement 1#B3C6FF
Split-complement 2#ECB3FF
Triadic 1#B3ECFF
Triadic 2#FFB3EC
Tetradic#B3FFEC
On the wheel
Base+30°−30°+120°+240°+180°75°

#ecffb3 sits at 75°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red92.5%
Green100.0%
Blue70.2%
R · 0–255
236
0xec
G · 0–255
255
0xff
B · 0–255
179
0xb3

CMYK percentages

Cyan7.5%
Magenta0.0%
Yellow29.8%
Key (black)0.0%

Total ink coverage is 37%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#ecffb3 text on a black background

contrast 19.52:1

Card sample

#ecffb3 text on a white background

contrast 1.08:1

Card sample

#ecffb3 on grey

1.02:1

#ecffb3 on its own surface

1.02:1

#ecffb3 on its dark surface

14.75:1

CSS3 live lab

Text font color

The quick brown fox

color: #ecffb3;
Background color
Panel with #ecffb3 background
background-color: #ecffb3;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ecffb3;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(236, 255, 179, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(236, 255, 179, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ecffb3;
background: linear-gradient(135deg, #ecffb3, #B9FFB3);
Gradient text

Gradient headline

background: linear-gradient(90deg, #ecffb3, #B3FFC0);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #ecffb3;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #ecffb3;
caret-color: #ecffb3;
Left rule
Pull quote or callout
border-left: 4px solid #ecffb3;
Ring + tint
Selected chip
background: #F9FFE5;
box-shadow: inset 0 0 0 2px #ecffb3;
Conic badge
68%
background: conic-gradient(#ecffb3 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #ecffb3 over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(236, 255, 179, 0.5)
rgb(236 255 179 / 50%)
#ecffb380
hsl(75 100% 85% / 50%)
color-mix(in srgb, #ecffb3 50%, transparent)
Alpha8-digit hexFlat on white
10%#ecffb31a#FDFFF7
20%#ecffb333#FBFFF0
40%#ecffb366#F7FFE1
60%#ecffb399#F4FFD1
80%#ecffb3cc#F0FFC2

Gradients from #ecffb3

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #FAFFEB, #ecffb3 45%, #608000);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #ecffb3, #94FF94);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #ecffb3, #C6B3FF);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #FBFFF0 0%, #ecffb3 45%, #608000 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F9FAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #FFF7E6 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #D9FFD2 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #608000 0%, transparent 65%), #ecffb3;

Monochromatic scale

Palettes built from #ecffb3

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#ecffb3 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
SustainabilityFinanceHealth and wellnessAgriculture
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

On screens

Very light values are indistinguishable from white on a dim phone screen outdoors. Give it a border if the boundary matters.

In dark mode

Usable as-is on a dark surface at 19.52:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#ecffb3, answered

What color is #ecffb3?

#ecffb3 is a pale electric green, closest to Pale Goldenrod (ΔE2000 7.6). It sits at 75° on the hue wheel with 100% saturation and 85% lightness, which reads as warm.

What is the RGB value of #ecffb3?

rgb(236, 255, 179) — 236 red, 255 green and 179 blue out of 255, or 92.5% / 100% / 70.2% by channel.

What is #ecffb3 in HSL and HSV?

hsl(75, 100%, 85%) and hsv(75, 30%, 100%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #ecffb3 a light or a dark color?

It is a light color. Relative luminance is 0.9261 and perceived brightness is 95%, so black text on it reaches 19.52:1.

Should I use black or white text on #ecffb3?

Black. It scores 19.52:1 against #ecffb3, versus 1.08:1 for white — AAA at any size.

Is #ecffb3 accessible on a white background?

#ecffb3 on white scores 1.08:1, which fails WCAG AA at every size. Darken it to #608000 to reach 4.5:1, or #496100 for 7:1.

What is the complementary color of #ecffb3?

#C6B3FF sits directly opposite on the wheel. Softer options are the split-complements #B3C6FF and #ECB3FF, which give the same contrast with far less vibration.

What colors go well with #ecffb3?

For interface work: #F9FAF4 as the surface, #E1EDC0 for borders, #879B4B for secondary text, #0000CC as an accent and #608000 for hover and pressed states. For a palette, the analogous pair #FFECB3 and #C6FFB3 stays calm, while #C6B3FF is the loudest partner.

What is #ecffb3 in CMYK for printing?

cmyk(8%, 0%, 30%, 0%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #ecffb3 warm or cool?

Warm — it scores 38 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #FFF6B3; nudged cooler, #D0FFB3.

Which Tailwind color is closest to #ecffb3?

The lime family — its 500 step is #84cc16, ΔE2000 19.1 away. That is a visible difference, so define #ecffb3 as a custom token rather than reaching for the built-in.

How do I use #ecffb3 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#ecffb3] or text-[#ecffb3], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #ecffb3 with 50% opacity?

rgba(236, 255, 179, 0.5), or #ecffb380 in eight-digit hex. Over white that composites to #F6FFD9; over black, #76805A.

Is #ecffb3 a web-safe color?

No. The nearest web-safe colour is #FFFFCC, ΔE2000 6.7 away. The palette only matters for legacy displays and some email clients now.

What does the color #ecffb3 mean?

As a green, it reads safe, growing, natural. Green means go, well, and grown. It carries finance, sustainability and health with almost no explanation needed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #ecffb3?

The safest is same-hue elevation: linear-gradient(135deg, #FAFFEB, #ecffb3 45%, #608000). For more colour, a short hue run to #94FF94 keeps it rich without turning muddy.

Work with #ecffb3 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #ecffb3 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.