Color reference

#EFF7CE color reference

Muted Very Light Yellow-green

This is a muted, very light yellow-green under the deterministic OKLCH hue, lightness, and chroma ranges. Its closest standardized CSS named color is Light Goldenrod Yellow (#FAFAD2), measured with straight-line OKLab distance.

Descriptive label
Muted Very Light Yellow-green
Recommended text
Black · 18.87:1
Relative luminance
0.893285
Build a palette from #EFF7CE in Palette Generator Convert #EFF7CE in Color Converter
Formats UI preview Contrast 50–900 scale Harmonies Matches Related colors Color vision Exports

Copyable values

#EFF7CE in common color formats

Values are calculated from the same opaque sRGB color. Display rounding does not alter the internal calculations.

Color conversions for #EFF7CE
Format Value Action
HEX #EFF7CE
RGB rgb(239 247 206)
HSL hsl(72 71.93% 88.82%)
HSV hsv(72 16.6% 96.86%)
HWB hwb(72 80.78% 3.14%)
XYZ D65 color(xyz-d65 0.799945 0.893285 0.714225)
LAB lab(95.8408% -7.8066 18.8581)
LCH lch(95.8408% 20.4101 112.488)
OKLAB oklab(95.9681% -0.024068 0.048492)
OKLCH oklch(95.9681% 0.054136 116.3962)

Real-world test

Try #EFF7CE on interface components

Preview the source as a primary action, subtle status, form treatment, and card surface. Persistent state controls help touch and keyboard users inspect the same normal, hover, and active colors.

Normal state uses #EFF7CE with black text at 18.87:1.

Action

Primary button

Use the controls above or point to and press the button to inspect its visual states.

Status

Subtle alert badge

A 12% source tint over white provides the background; readable text is selected separately.

Ready for review

Form

Border and focus ring

Source ring on white: 1.11:1 · does not meet the 3:1 non-text threshold where applicable.

Surface

Card component

The selected state becomes the card surface with its strongest black-or-white text pairing.

Design system Color decision ready Review states and surrounding surfaces before shipping.

Accessibility diagnostics

WCAG contrast for exact color pairs

Each result applies only to the named foreground, background, text size, and requirement. It is not a complete accessibility or component-conformance claim.

Source #EFF7CE Exact pair assessment Results for source text on white appear below.

On white

1.11:1

  • Fail AA normal text · 4.5:1
  • Fail AAA normal text · 7:1
  • Fail AA large text · 3:1
  • Fail UI/non-text where applicable · 3:1
Source #EFF7CE Exact pair assessment Results for source text on black appear below.

On black

18.87:1

  • Pass AA normal text · 4.5:1
  • Pass AAA normal text · 7:1
  • Pass AA large text · 3:1
  • Pass UI/non-text where applicable · 3:1

Use guidance

What this color may be suitable for

Not recommended

Normal-sized text

#EFF7CE does not reach 4.5:1 on white or Hue Codex paper, so it should not be used there for normal-sized text.

Needs a boundary

Controls and interface graphics

Against Hue Codex paper, the color reaches only 1.07:1. Use a contrasting border or another non-color boundary for meaningful controls and graphics.

Readable pairing available

Colored surface or button fill

Black text provides the stronger black/white pairing on #EFF7CE at 18.87:1. This validates only that text pair, not hover, focus, disabled, or adjacent-color states.

Restrained neutral

Palette role

Its OKLCH chroma of 0.0541 is restrained, which is generally more suitable for surfaces, borders, or neutral system roles than for a vivid accent.

Pair available

Color used as foreground

The stronger black/white background is black at 18.87:1. Always retest against the actual rendered background and text size.

Tested backgrounds

Foreground pairing comparison

#EFF7CE foreground contrast on tested backgrounds
Pair Background Contrast ratio
Black#000000 18.87:1
Hue Codex ink#10212B 14.8:1
White#FFFFFF 1.11:1
Hue Codex paper#FBFAF5 1.07:1
Soft neutral#F2EFE6 1.03:1
Check #EFF7CE on another background in Contrast Checker

Design-system starting point

A perceptual 50–900 reference scale

The source color is preserved at the nearest lightness step. Other swatches keep its OKLCH hue, moderate chroma toward the extremes, and reduce chroma only when needed to remain in sRGB.

50 #EFF7CE Source
100
200
300
400
500
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700
800
900

This is a Hue Codex reference scale, not a claim that the values match Tailwind, Material, or another framework’s named palette.

Adjust the #EFF7CE scale in Tints, Shades & Tones

Color relationships

Complementary, analogous, and triadic colors

Hue rotations use OKLCH while preserving lightness and requested chroma. When a rotated result falls outside sRGB, chroma is reduced deterministically and disclosed.

Complementary

Source #EFF7CE
Complement Chroma fitted to sRGB

Analogous

Source #EFF7CE
Analogous −30° Chroma fitted to sRGB
Analogous +30°

Triadic

Source #EFF7CE
Triad +120° Chroma fitted to sRGB
Triad +240° Chroma fitted to sRGB

Applied pairing

A small interface check

The source anchors the main action while the complement marks a secondary status. Contrast is selected separately for each fill.

Project color Muted Very Light Yellow-green
Complement
Explore #EFF7CE in Color Harmonies

Distance matching

Closest standardized and framework colors

Matches use straight-line OKLab distance ×100. A smaller value means the coordinates are closer in this model; it is not a claim that two tokens are interchangeable in a design system.

CSS named color

Light Goldenrod Yellow

#FAFAD2

OKLab distance ×100: 1.76

Tailwind v4 default

lime-100

oklch(96.7% 0.067 122.328)

OKLab distance ×100: 1.61 · sRGB preview #ECFCCA

Print boundary

Pantone match not estimated

Reliable print matching needs licensed reference data plus a defined ink, paper, profile, and viewing condition.

Read the print methodology

Color-vision screening

Approximate color-vision-deficiency views

These encoded-sRGB matrix previews are screening approximations. They help reveal possible color-only distinctions but do not reproduce every person’s vision or establish accessibility conformance.

Original#EFF7CE
Approx.

Protanopia

Red-vision deficiency approximation

Original#EFF7CE
Approx.

Deuteranopia

Green-vision deficiency approximation

Original#EFF7CE
Approx.

Tritanopia

Blue-yellow deficiency approximation

Original#EFF7CE
Approx.

Achromatopsia

Monochromatic-vision approximation

Test #EFF7CE with a complete palette in the CVD Simulator

Ready to use

Copy framework-ready color tokens

Exports preserve the source, readable foreground, and generated 50–900 scale. Tailwind v4 CSS-first and Tailwind v3 JavaScript-config formats are labeled separately.

CSS custom properties

Semantic aliases and the complete 50–900 scale.

:root {
  --color-primary: #EFF7CE;
  --color-on-primary: #000000;
  --color-primary-oklch: oklch(95.9681% 0.054136 116.3962);
  --color-primary-50: #EFF7CE;
  --color-primary-100: #DBE3BB;
  --color-primary-200: #C2C9A3;
  --color-primary-300: #A8AF8B;
  --color-primary-400: #909674;
  --color-primary-500: #787E5E;
  --color-primary-600: #616748;
  --color-primary-700: #4B5033;
  --color-primary-800: #363B1F;
  --color-primary-900: #23270C;
}

Tailwind v4 CSS-first theme

Current @theme syntax for bg-brand, text-brand, and scale utilities.

@import "tailwindcss";

@theme {
  --color-brand: #EFF7CE;
  --color-brand-foreground: #000000;
  --color-brand-50: #EFF7CE;
  --color-brand-100: #DBE3BB;
  --color-brand-200: #C2C9A3;
  --color-brand-300: #A8AF8B;
  --color-brand-400: #909674;
  --color-brand-500: #787E5E;
  --color-brand-600: #616748;
  --color-brand-700: #4B5033;
  --color-brand-800: #363B1F;
  --color-brand-900: #23270C;
}

Tailwind v3 / legacy config

CommonJS theme.extend.colors for JavaScript-config projects.

module.exports = {
  theme: {
    extend: {
      colors: {
        brand: {
          '50': '#EFF7CE',
          '100': '#DBE3BB',
          '200': '#C2C9A3',
          '300': '#A8AF8B',
          '400': '#909674',
          '500': '#787E5E',
          '600': '#616748',
          '700': '#4B5033',
          '800': '#363B1F',
          '900': '#23270C',
          DEFAULT: '#EFF7CE',
          foreground: '#000000',
        },
      },
    },
  },
};

Sass variables

Semantic source, foreground, OKLCH, and scale variables.

$color-primary: #EFF7CE;
$color-on-primary: #000000;
$color-primary-oklch: oklch(95.9681% 0.054136 116.3962);
$color-primary-50: #EFF7CE;
$color-primary-100: #DBE3BB;
$color-primary-200: #C2C9A3;
$color-primary-300: #A8AF8B;
$color-primary-400: #909674;
$color-primary-500: #787E5E;
$color-primary-600: #616748;
$color-primary-700: #4B5033;
$color-primary-800: #363B1F;
$color-primary-900: #23270C;

Modern color-mix()

Static fallbacks followed by OKLab tint and shade declarations.

:root {
  --color-primary: #EFF7CE;
  --color-primary-tint: #C2C9A3;
  --color-primary-tint: color-mix(in oklab, var(--color-primary) 72%, white);
  --color-primary-shade: #4B5033;
  --color-primary-shade: color-mix(in oklab, var(--color-primary) 82%, black);
}

JSON design data

Source formats, readable text, and the generated scale.

{
    "name": "Muted Very Light Yellow-green",
    "hex": "#EFF7CE",
    "rgb": "rgb(239 247 206)",
    "oklch": "oklch(95.9681% 0.054136 116.3962)",
    "recommendedText": "#000000",
    "scale": {
        "50": "#EFF7CE",
        "100": "#DBE3BB",
        "200": "#C2C9A3",
        "300": "#A8AF8B",
        "400": "#909674",
        "500": "#787E5E",
        "600": "#616748",
        "700": "#4B5033",
        "800": "#363B1F",
        "900": "#23270C"
    }
}

Continue the decision

Use #EFF7CE in a complete workflow

Reference values are a starting point. Test the color in its real role, background, states, typography, and surrounding palette before shipping.

Adjust #EFF7CE in Color PickerStart with this exact color and white as the working background for role and accessibility decisions. Build a palette from #EFF7CE in Palette GeneratorUse this exact HEX as the seed for a deterministic, role-based palette. Check #EFF7CE on white in Contrast CheckerStart with this color as the foreground and white as the background, then test the real pair.