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green · warm

#eff9da

a pale, vivid green · warm · closest name: Light Yellow

Token name suggestion: Chalk Moss

RGB
239, 249, 218
HSL
79°, 72%, 92%
CMYK
4, 0, 12, 2
Luminance
0.9116

#eff9da is a pale vivid green, 79° on the wheel and 41/100 on the cool side. Put black text on it (19.23:1). As text it scores 1.09:1 on white — use #5C7E14 instead. Nearest name is Light Yellow, nearest Tailwind family is lime.

hsl(79 72% 92%)rgb(239 249 218)Base step 100AAA inkWarm

At a glance

Every number on this page in one read: what #eff9da is made of, how bright it looks, and which way it leans.

Hex
#eff9da
Hue
79°
green
Saturation
72%
vivid
Lightness
92%
pale
Brightness
98%
HSV value
Perceived
95%
weighted brightness
Luminance
0.9116
WCAG relative
Temperature
Warm
41/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
19.23:1
Closest name
Light Yellow
ΔE2000 4.1
Chroma
16.2
LCH, 0–130ish
OKLCH L
0.967
perceptual lightness
Tailwind
lime
500 · ΔE 25.3
Web-safe
#FFFFCC
nearest of 216
Where it sits
Hue79° of 360°
Saturation72%
Lightness92%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #eff9da.

Temperature
Warm ← → Cool41% 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%
Green74%
Blue6%

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

Every format

HEX#eff9da
HEX (8-digit)#eff9daff
RGBrgb(239, 249, 218)
RGBArgba(239, 249, 218, 1)
HSLhsl(79, 72%, 92%)
HSV / HSBhsv(79, 12%, 98%)
HWBhwb(79 85% 2%)
CMYKcmyk(4%, 0%, 12%, 2%)
LABlab(96.5 -8.6 13.8)
LCHlch(96.5 16.2 122.0)
OKLCHoklch(0.967 0.042 121.7)
XYZ (D65)xyz(82.13, 91.16, 79.59)
Decimal15727066
Display P3color(display-p3 0.937 0.976 0.855)
Web-safe#FFFFCC

Copy-ready code

every platformclick to select
/* CSS */
color: #eff9da;
background-color: #eff9da;
/* CSS custom property */
--brand: #eff9da;
/* Tailwind (arbitrary) */
class="text-[#eff9da] bg-[#eff9da]"
/* SCSS */
$brand: #eff9da;
/* SwiftUI */
Color(red: 0.937, green: 0.976, blue: 0.855)
/* UIKit */
UIColor(red: 0.937, green: 0.976, blue: 0.855, alpha: 1)
/* Android XML */
<color name="brand">#EFF9DA</color>
/* Android Compose */
Color(0xFFEFF9DA)
/* Flutter */
Color(0xFFEFF9DA)
/* Python / OpenCV (BGR) */
(218, 249, 239)
/* Python / PIL (RGB) */
(239, 249, 218)
/* Java AWT */
new Color(239, 249, 218)
/* .NET */
Color.FromArgb(255, 239, 249, 218)
/* OpenGL / Unity (0–1) */
(0.9373f, 0.9765f, 0.8549f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{239,249,218}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #eff9da 85%, white);
border-color: color-mix(in oklab, #eff9da 40%, transparent);
/* theme-aware in one line */
color: light-dark(#506E12, #E5EED3);
/* relative colour syntax */
--hover: hsl(from #eff9da 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: #F9FCF3;
  --brand-100: #eff9da;
  --brand-200: #E5F3C9;
  --brand-300: #D5EF9E;
  --brand-400: #C0E86E;
  --brand-500: #ABE03E;
  --brand-600: #9AD322;
  --brand-700: #80B01C;
  --brand-800: #668C17;
  --brand-900: #4C6615;
  --brand-950: #2F400D;
  --brand: #eff9da;
  --brand-ink: #000000;
  --brand-surface: #F8FAF4;
  --brand-border: #DEEDC0;
  --brand-hover: #E2F4BB;
  --brand-pressed: #D4EF9D;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1F2414;
    --brand-ink: #E5EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F9FCF3',
        100: '#eff9da',
        200: '#E5F3C9',
        300: '#D5EF9E',
        400: '#C0E86E',
        500: '#ABE03E',
        600: '#9AD322',
        700: '#80B01C',
        800: '#668C17',
        900: '#4C6615',
        950: '#2F400D',
        DEFAULT: '#eff9da',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F9FCF3,
  '100': #eff9da,
  '200': #E5F3C9,
  '300': #D5EF9E,
  '400': #C0E86E,
  '500': #ABE03E,
  '600': #9AD322,
  '700': #80B01C,
  '800': #668C17,
  '900': #4C6615,
  '950': #2F400D,
);
$brand-base: #eff9da;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F9FCF3", "$type": "color" },
      "100": { "$value": "#eff9da", "$type": "color" },
      "200": { "$value": "#E5F3C9", "$type": "color" },
      "300": { "$value": "#D5EF9E", "$type": "color" },
      "400": { "$value": "#C0E86E", "$type": "color" },
      "500": { "$value": "#ABE03E", "$type": "color" },
      "600": { "$value": "#9AD322", "$type": "color" },
      "700": { "$value": "#80B01C", "$type": "color" },
      "800": { "$value": "#668C17", "$type": "color" },
      "900": { "$value": "#4C6615", "$type": "color" },
      "950": { "$value": "#2F400D", "$type": "color" }
    },
    "brandInk": { "$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 #eff9da · 19.23:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.09:1
AA fail · AA large fail · AAA fail
Aa
Black text · 19.23:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #eff9da as text scores 1.09:1 on white and 19.23:1 on black.
Best tinted ink on it, if plain black or white feels flat: #506E12 at 5.37:1.

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
#5C7E14 · 4.72:1
AA on white−63% L
#5C7E14
The quick fox
#455F0F · 7.25:1
AAA on white−70% L
#455F0F
The quick fox
#eff9da · 19.23:1
AA on blackalready passes
#eff9da
The quick fox
#eff9da · 19.23:1
AAA on blackalready passes
#eff9da

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #75A11A 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
#eff9da on white: 1.09:1
AA ✗ fail · AA-large · AAA
Aa
#eff9da on black: 19.23:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #eff9da as text on that neutral, and that neutral as text on #eff9da.

NeutralRatioBoth directions
White1.09:1AaAa
Slate 501.04:1AaAa
Slate 1001.00:1AaAa
Slate 2001.13:1AaAa
Slate 3001.36:1AaAa
Slate 4002.35:1AaAa
Slate 5004.36:1AaAa
Slate 6006.94:1AaAa
Slate 7009.48:1AaAa
Slate 80013.40:1AaAa
Slate 90016.35:1AaAa
Black19.23:1AaAa
Colour vision deficiency
true color
protanopia · #FDF5D8
deuteranopia · #FCF5DB
tritanopia · #F2F6F0

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. #eff9da is pinned to step 100; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F9FCF3
#eff9da
#E5F3C9
#D5EF9E
#C0E86E
#ABE03E
#9AD322
#80B01C
#668C17
#4C6615
#2F400D
Base = 100Lightest = 50 · #F9FCF3Darkest = 950 · #2F400DText 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 0.011 121.7);
  --brand-100: oklch(0.94 0.017 121.7);
  --brand-200: oklch(0.88 0.025 121.7);
  --brand-300: oklch(0.80 0.033 121.7);
  --brand-400: oklch(0.72 0.039 121.7);
  --brand-500: oklch(0.64 0.042 121.7);
  --brand-600: oklch(0.56 0.042 121.7);
  --brand-700: oklch(0.48 0.039 121.7);
  --brand-800: oklch(0.40 0.035 121.7);
  --brand-900: oklch(0.32 0.029 121.7);
  --brand-950: oklch(0.24 0.023 121.7);
}

Colors that work with #eff9da

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#F8FAF4
Tinted page background
Border#DEEDC0
Hairlines and dividers
Muted text#819B4B
Captions on the surface
Accent#2618B4
Second voice, not a rival
Dark variant#506E12
Hover, pressed, headers
Light variant#F5FBE9
Selected rows, tints
Dark surface#1F2414
Dark-mode background
Hover#E2F4BB
One step down in lightness
Pressed#D4EF9D
Two steps down
Disabled#F6F7F3
Chroma pulled out
Focus ring#F1FBDA
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 #eff9da

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 #506E12
Safe as a 1px border on white
No — use #75A11A

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.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. 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
  • FormalityMedium
  • EnergyMedium-high
  • Weight8/100
  • 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#E4DAF9
Analogous left#F9F4DA
Analogous right#E0F9DA
Split-complement 1#DAE0F9
Split-complement 2#F4DAF9
Triadic 1#DAEFF9
Triadic 2#F9DAEF
Tetradic#DAF9F4
On the wheel
Base+30°−30°+120°+240°+180°79°

#eff9da sits at 79°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red93.7%
Green97.6%
Blue85.5%
R · 0–255
239
0xef
G · 0–255
249
0xf9
B · 0–255
218
0xda

CMYK percentages

Cyan4.0%
Magenta0.0%
Yellow12.4%
Key (black)2.4%

Total ink coverage is 19%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#eff9da text on a black background

contrast 19.23:1

Card sample

#eff9da text on a white background

contrast 1.09:1

Card sample

#eff9da on grey

1.00:1

#eff9da on its own surface

1.04:1

#eff9da on its dark surface

14.56:1

CSS3 live lab

Text font color

The quick brown fox

color: #eff9da;
Background color
Panel with #eff9da background
background-color: #eff9da;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #eff9da;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(239, 249, 218, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(239, 249, 218, 0.45);
Border & gradient
Gradient panel
border: 3px solid #eff9da;
background: linear-gradient(135deg, #eff9da, #DAF9DA);
Gradient text

Gradient headline

background: linear-gradient(90deg, #eff9da, #DAF9E2);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #eff9da;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #eff9da;
caret-color: #eff9da;
Left rule
Pull quote or callout
border-left: 4px solid #eff9da;
Ring + tint
Selected chip
background: #F5FBE9;
box-shadow: inset 0 0 0 2px #eff9da;
Conic badge
68%
background: conic-gradient(#eff9da 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #eff9da 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, 249, 218, 0.5)
rgb(239 249 218 / 50%)
#eff9da80
hsl(79 72% 92% / 50%)
color-mix(in srgb, #eff9da 50%, transparent)
Alpha8-digit hexFlat on white
10%#eff9da1a#FDFEFB
20%#eff9da33#FCFEF8
40%#eff9da66#F9FDF0
60%#eff9da99#F5FBE9
80%#eff9dacc#F2FAE1

Gradients from #eff9da

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, #F7FCED, #eff9da 45%, #506E12);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #eff9da, #C0F5C4);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #eff9da, #E4DAF9);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F9FDF2 0%, #eff9da 45%, #506E12 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F8FAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #FFFFFF 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #F5FDF4 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #506E12 0%, transparent 65%), #eff9da;

Monochromatic scale

Palettes built from #eff9da

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.

#eff9da 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

Very light tints can drop out on uncoated stock; check it at 100% size before signing off.

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 19.23:1.

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.

#eff9da, answered

What color is #eff9da?

#eff9da is a pale vivid green, closest to Light Yellow (ΔE2000 4.1). It sits at 79° on the hue wheel with 72% saturation and 92% lightness, which reads as warm.

What is the RGB value of #eff9da?

rgb(239, 249, 218) — 239 red, 249 green and 218 blue out of 255, or 93.7% / 97.6% / 85.5% by channel.

What is #eff9da in HSL and HSV?

hsl(79, 72%, 92%) and hsv(79, 12%, 98%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #eff9da a light or a dark color?

It is a light color. Relative luminance is 0.9116 and perceived brightness is 95%, so black text on it reaches 19.23:1.

Should I use black or white text on #eff9da?

Black. It scores 19.23:1 against #eff9da, versus 1.09:1 for white — AAA at any size.

Is #eff9da accessible on a white background?

#eff9da on white scores 1.09:1, which fails WCAG AA at every size. Darken it to #5C7E14 to reach 4.5:1, or #455F0F for 7:1.

What is the complementary color of #eff9da?

#E4DAF9 sits directly opposite on the wheel. Softer options are the split-complements #DAE0F9 and #F4DAF9, which give the same contrast with far less vibration.

What colors go well with #eff9da?

For interface work: #F8FAF4 as the surface, #DEEDC0 for borders, #819B4B for secondary text, #2618B4 as an accent and #506E12 for hover and pressed states. For a palette, the analogous pair #F9F4DA and #E0F9DA stays calm, while #E4DAF9 is the loudest partner.

What is #eff9da in CMYK for printing?

cmyk(4%, 0%, 12%, 2%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #eff9da warm or cool?

Warm — it scores 41 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #F9F8DA; nudged cooler, #E4F9DA.

Which Tailwind color is closest to #eff9da?

The lime family — its 500 step is #84cc16, ΔE2000 25.3 away. That is a visible difference, so define #eff9da as a custom token rather than reaching for the built-in.

How do I use #eff9da in Tailwind CSS?

Inline it as an arbitrary value with bg-[#eff9da] or text-[#eff9da], 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 #eff9da with 50% opacity?

rgba(239, 249, 218, 0.5), or #eff9da80 in eight-digit hex. Over white that composites to #F7FCED; over black, #787D6D.

Is #eff9da a web-safe color?

No. The nearest web-safe colour is #FFFFCC, ΔE2000 6.4 away. The palette only matters for legacy displays and some email clients now.

What does the color #eff9da 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 #eff9da?

The safest is same-hue elevation: linear-gradient(135deg, #F7FCED, #eff9da 45%, #506E12). For more colour, a short hue run to #C0F5C4 keeps it rich without turning muddy.

Work with #eff9da in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #eff9da at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.