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green · warm

#effeb8

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

Token name suggestion: Whisper Jade

RGB
239, 254, 184
HSL
73°, 97%, 86%
CMYK
6, 0, 28, 0
Luminance
0.9270

#effeb8 is a pale electric green, 73° on the wheel and 36/100 on the cool side. Put black text on it (19.54:1). As text it scores 1.07:1 on white — use #637D02 instead. Nearest name is Pale Goldenrod, nearest Tailwind family is lime.

hsl(73 97% 86%)rgb(239 254 184)Base step 200AAA inkWarm

At a glance

Every number on this page in one read: what #effeb8 is made of, how bright it looks, and which way it leans.

Hex
#effeb8
Hue
73°
green
Saturation
97%
electric
Lightness
86%
pale
Brightness
100%
HSV value
Perceived
95%
weighted brightness
Luminance
0.9270
WCAG relative
Temperature
Warm
36/100 cool
Color family
Green
Tone
Electric
Best ink
Black
19.54:1
Closest name
Pale Goldenrod
ΔE2000 6.8
Chroma
35.7
LCH, 0–130ish
OKLCH L
0.969
perceptual lightness
Tailwind
lime
500 · ΔE 19.9
Web-safe
#FFFFCC
nearest of 216
Where it sits
Hue73° of 360°
Saturation97%
Lightness86%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #effeb8.

Temperature
Warm ← → Cool36% 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
Red20%
Green76%
Blue4%

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

Every format

HEX#effeb8
HEX (8-digit)#effeb8ff
RGBrgb(239, 254, 184)
RGBArgba(239, 254, 184, 1)
HSLhsl(73, 97%, 86%)
HSV / HSBhsv(73, 28%, 100%)
HWBhwb(73 72% 0%)
CMYKcmyk(6%, 0%, 28%, 0%)
LABlab(97.1 -16.0 31.9)
LCHlch(97.1 35.7 116.7)
OKLCHoklch(0.969 0.091 118.0)
XYZ (D65)xyz(79.69, 92.70, 59.03)
Decimal15728312
Display P3color(display-p3 0.937 0.996 0.722)
Web-safe#FFFFCC

Copy-ready code

every platformclick to select
/* CSS */
color: #effeb8;
background-color: #effeb8;
/* CSS custom property */
--brand: #effeb8;
/* Tailwind (arbitrary) */
class="text-[#effeb8] bg-[#effeb8]"
/* SCSS */
$brand: #effeb8;
/* SwiftUI */
Color(red: 0.937, green: 0.996, blue: 0.722)
/* UIKit */
UIColor(red: 0.937, green: 0.996, blue: 0.722, alpha: 1)
/* Android XML */
<color name="brand">#EFFEB8</color>
/* Android Compose */
Color(0xFFEFFEB8)
/* Flutter */
Color(0xFFEFFEB8)
/* Python / OpenCV (BGR) */
(184, 254, 239)
/* Python / PIL (RGB) */
(239, 254, 184)
/* Java AWT */
new Color(239, 254, 184)
/* .NET */
Color.FromArgb(255, 239, 254, 184)
/* OpenGL / Unity (0–1) */
(0.9373f, 0.9961f, 0.7216f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{239,254,184}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #effeb8 85%, white);
border-color: color-mix(in oklab, #effeb8 40%, transparent);
/* theme-aware in one line */
color: light-dark(#637E02, #E8EED3);
/* relative colour syntax */
--hover: hsl(from #effeb8 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: #FBFDF1;
  --brand-100: #F7FCE4;
  --brand-200: #effeb8;
  --brand-300: #E6FD90;
  --brand-400: #D9FD59;
  --brand-500: #CDFC22;
  --brand-600: #BEF103;
  --brand-700: #9FC903;
  --brand-800: #7FA102;
  --brand-900: #5C7406;
  --brand-950: #3A4804;
  --brand: #effeb8;
  --brand-ink: #000000;
  --brand-surface: #F9FAF4;
  --brand-border: #E3EDC0;
  --brand-hover: #E7FD95;
  --brand-pressed: #DFFD72;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #212414;
    --brand-ink: #E8EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FBFDF1',
        100: '#F7FCE4',
        200: '#effeb8',
        300: '#E6FD90',
        400: '#D9FD59',
        500: '#CDFC22',
        600: '#BEF103',
        700: '#9FC903',
        800: '#7FA102',
        900: '#5C7406',
        950: '#3A4804',
        DEFAULT: '#effeb8',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FBFDF1,
  '100': #F7FCE4,
  '200': #effeb8,
  '300': #E6FD90,
  '400': #D9FD59,
  '500': #CDFC22,
  '600': #BEF103,
  '700': #9FC903,
  '800': #7FA102,
  '900': #5C7406,
  '950': #3A4804,
);
$brand-base: #effeb8;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FBFDF1", "$type": "color" },
      "100": { "$value": "#F7FCE4", "$type": "color" },
      "200": { "$value": "#effeb8", "$type": "color" },
      "300": { "$value": "#E6FD90", "$type": "color" },
      "400": { "$value": "#D9FD59", "$type": "color" },
      "500": { "$value": "#CDFC22", "$type": "color" },
      "600": { "$value": "#BEF103", "$type": "color" },
      "700": { "$value": "#9FC903", "$type": "color" },
      "800": { "$value": "#7FA102", "$type": "color" },
      "900": { "$value": "#5C7406", "$type": "color" },
      "950": { "$value": "#3A4804", "$type": "color" }
    },
    "brandInk": { "$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 #effeb8 · 19.54:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.07:1
AA fail · AA large fail · AAA fail
Aa
Black text · 19.54:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #effeb8 as text scores 1.07:1 on white and 19.54:1 on black.
Best tinted ink on it, if plain black or white feels flat: #637E02 at 4.33:1.

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
#637D02 · 4.70:1
AA on white−61% L
#637D02
The quick fox
#4B5F01 · 7.15:1
AAA on white−67% L
#4B5F01
The quick fox
#effeb8 · 19.54:1
AA on blackalready passes
#effeb8
The quick fox
#effeb8 · 19.54:1
AAA on blackalready passes
#effeb8

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #7EA002 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
#effeb8 on white: 1.07:1
AA ✗ fail · AA-large · AAA
Aa
#effeb8 on black: 19.54:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #effeb8 as text on that neutral, and that neutral as text on #effeb8.

NeutralRatioBoth directions
White1.07:1AaAa
Slate 501.03:1AaAa
Slate 1001.02:1AaAa
Slate 2001.15:1AaAa
Slate 3001.38:1AaAa
Slate 4002.39:1AaAa
Slate 5004.43:1AaAa
Slate 6007.05:1AaAa
Slate 7009.63:1AaAa
Slate 80013.61:1AaAa
Slate 90016.61:1AaAa
Black19.54:1AaAa
Colour vision deficiency
true color
protanopia · #FFF6B3
deuteranopia · #FFF7BB
tritanopia · #F6F6EC

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. #effeb8 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.

#FBFDF1
#F7FCE4
#effeb8
#E6FD90
#D9FD59
#CDFC22
#BEF103
#9FC903
#7FA102
#5C7406
#3A4804
Base = 200Lightest = 50 · #FBFDF1Darkest = 950 · #3A4804Text 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 0.023 118.0);
  --brand-100: oklch(0.94 0.036 118.0);
  --brand-200: oklch(0.88 0.054 118.0);
  --brand-300: oklch(0.80 0.071 118.0);
  --brand-400: oklch(0.72 0.084 118.0);
  --brand-500: oklch(0.64 0.091 118.0);
  --brand-600: oklch(0.56 0.091 118.0);
  --brand-700: oklch(0.48 0.085 118.0);
  --brand-800: oklch(0.40 0.076 118.0);
  --brand-900: oklch(0.32 0.064 118.0);
  --brand-950: oklch(0.24 0.050 118.0);
}

Colors that work with #effeb8

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#E3EDC0
Hairlines and dividers
Muted text#8A9B4B
Captions on the surface
Accent#0008CC
Second voice, not a rival
Dark variant#637E02
Hover, pressed, headers
Light variant#F9FFE6
Selected rows, tints
Dark surface#212414
Dark-mode background
Hover#E7FD95
One step down in lightness
Pressed#DFFD72
Two steps down
Disabled#F6F7F3
Chroma pulled out
Focus ring#F4FFCB
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 #effeb8

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 #637E02
Safe as a 1px border on white
No — use #7EA002

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
  • Weight14/100
  • 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#C7B8FE
Analogous left#FEEAB8
Analogous right#CCFEB8
Split-complement 1#B8CCFE
Split-complement 2#EAB8FE
Triadic 1#B8EFFE
Triadic 2#FEB8EF
Tetradic#B8FEEA
On the wheel
Base+30°−30°+120°+240°+180°73°

#effeb8 sits at 73°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red93.7%
Green99.6%
Blue72.2%
R · 0–255
239
0xef
G · 0–255
254
0xfe
B · 0–255
184
0xb8

CMYK percentages

Cyan5.9%
Magenta0.0%
Yellow27.6%
Key (black)0.4%

Total ink coverage is 34%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#effeb8 text on a black background

contrast 19.54:1

Card sample

#effeb8 text on a white background

contrast 1.07:1

Card sample

#effeb8 on grey

1.02:1

#effeb8 on its own surface

1.02:1

#effeb8 on its dark surface

14.72:1

CSS3 live lab

Text font color

The quick brown fox

color: #effeb8;
Background color
Panel with #effeb8 background
background-color: #effeb8;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #effeb8;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(239, 254, 184, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(239, 254, 184, 0.45);
Border & gradient
Gradient panel
border: 3px solid #effeb8;
background: linear-gradient(135deg, #effeb8, #C0FEB8);
Gradient text

Gradient headline

background: linear-gradient(90deg, #effeb8, #B8FEC1);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #effeb8;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #effeb8;
caret-color: #effeb8;
Left rule
Pull quote or callout
border-left: 4px solid #effeb8;
Ring + tint
Selected chip
background: #F9FFE6;
box-shadow: inset 0 0 0 2px #effeb8;
Conic badge
68%
background: conic-gradient(#effeb8 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #effeb8 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(239, 254, 184, 0.5)
rgb(239 254 184 / 50%)
#effeb880
hsl(73 97% 86% / 50%)
color-mix(in srgb, #effeb8 50%, transparent)
Alpha8-digit hexFlat on white
10%#effeb81a#FDFFF8
20%#effeb833#FCFFF1
40%#effeb866#F9FFE3
60%#effeb899#F5FED4
80%#effeb8cc#F2FEC6

Gradients from #effeb8

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, #effeb8 45%, #637E02);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #effeb8, #9DFE9A);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #effeb8, #C7B8FE);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #FCFFF0 0%, #effeb8 45%, #637E02 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%, #FFF7EA 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #DEFED6 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #637E02 0%, transparent 65%), #effeb8;

Monochromatic scale

Palettes built from #effeb8

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.

#effeb8 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 19.54:1.

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.

#effeb8, answered

What color is #effeb8?

#effeb8 is a pale electric green, closest to Pale Goldenrod (ΔE2000 6.8). It sits at 73° on the hue wheel with 97% saturation and 86% lightness, which reads as warm.

What is the RGB value of #effeb8?

rgb(239, 254, 184) — 239 red, 254 green and 184 blue out of 255, or 93.7% / 99.6% / 72.2% by channel.

What is #effeb8 in HSL and HSV?

hsl(73, 97%, 86%) and hsv(73, 28%, 100%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #effeb8 a light or a dark color?

It is a light color. Relative luminance is 0.9270 and perceived brightness is 95%, so black text on it reaches 19.54:1.

Should I use black or white text on #effeb8?

Black. It scores 19.54:1 against #effeb8, versus 1.07:1 for white — AAA at any size.

Is #effeb8 accessible on a white background?

#effeb8 on white scores 1.07:1, which fails WCAG AA at every size. Darken it to #637D02 to reach 4.5:1, or #4B5F01 for 7:1.

What is the complementary color of #effeb8?

#C7B8FE sits directly opposite on the wheel. Softer options are the split-complements #B8CCFE and #EAB8FE, which give the same contrast with far less vibration.

What colors go well with #effeb8?

For interface work: #F9FAF4 as the surface, #E3EDC0 for borders, #8A9B4B for secondary text, #0008CC as an accent and #637E02 for hover and pressed states. For a palette, the analogous pair #FEEAB8 and #CCFEB8 stays calm, while #C7B8FE is the loudest partner.

What is #effeb8 in CMYK for printing?

cmyk(6%, 0%, 28%, 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 #effeb8 warm or cool?

Warm — it scores 36 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #FEF3B8; nudged cooler, #D5FFB7.

Which Tailwind color is closest to #effeb8?

The lime family — its 500 step is #84cc16, ΔE2000 19.9 away. That is a visible difference, so define #effeb8 as a custom token rather than reaching for the built-in.

How do I use #effeb8 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#effeb8] or text-[#effeb8], 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 #effeb8 with 50% opacity?

rgba(239, 254, 184, 0.5), or #effeb880 in eight-digit hex. Over white that composites to #F7FFDC; over black, #787F5C.

Is #effeb8 a web-safe color?

No. The nearest web-safe colour is #FFFFCC, ΔE2000 5.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #effeb8 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 #effeb8?

The safest is same-hue elevation: linear-gradient(135deg, #FAFFEB, #effeb8 45%, #637E02). For more colour, a short hue run to #9DFE9A keeps it rich without turning muddy.

Work with #effeb8 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #effeb8 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.