Crayola crayon color

Crayola Electric Lime #CEFF1D

Crayola Electric Lime is shown here as #CEFF1D, the commonly published value for the crayon. It is a pale vivid yellow in the green family. In OKLCH it sits at lightness 0.932, chroma 0.224 and hue 122.8°. The nearest CSS named color is greenyellow (#ADFF2F), ΔE2000 5.2 away.

Relative luminance
0.8473
OKLCH L · C · h
0.932 · 0.224 · 122.8
Best text
Black 17.94:1
Hue family
Green
Inspect this color Check contrast

#CEFF1D color codes

HEX
#CEFF1D
RGB
rgb(206, 255, 29)
HSL
hsl(73, 100%, 56%)
OKLCH
oklch(0.932 0.224 122.8)
OKLab
oklab(0.932 -0.121 0.188)
CIELAB (D65)
L* 93.77, a* -40.82, b* 87.64
XYZ (D65)
X 61.44, Y 84.73, Z 14.28
CMYK (naive)
cmyk(19%, 0%, 89%, 0%)

CIELAB and XYZ use the D65 white point; CSS lab() uses D50, so paste the OKLCH or HEX value into stylesheets. CMYK here is a plain formula with no press profile.

Crayola is a trademark of Crayola LLC, which this site is not affiliated with. The value is the commonly published sRGB rendering of the crayon, not a Crayola specification.

Legibility

Contrast: is #CEFF1D accessible?

Black text on it reaches 17.94:1, passing AAA. White text fails at 1.17:1.

WCAG 2 gives the same ratio whichever color is the text; APCA does not, so its Lc changes sign and size with polarity.

Open the Contrast System

  • Black text on it

    17.94:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +95

  • White text on it

    1.17:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc −9

    Text is here, unreadable at 1.17:1

  • As text on black

    17.94:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −96

  • As text on white

    1.17:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc +7

    Text is here, unreadable at 1.17:1

Nearest versions that pass 4.5:1

  • For text on white

    #658000 4.52:1

    Darkening its OKLCH lightness from 0.93 to 0.56 reaches 4.52:1 on white, keeping the hue.

    Compare both in the Contrast System

  • For text on black

    #CEFF1D 17.94:1

    It already reaches 17.94:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #CEFF1D live

Move lightness, chroma and hue in OKLCH, or drag on the map. The map is every lightness and chroma at the current hue: sRGB inside the solid area, Display P3 out to the dashed line.

The studio needs JavaScript.

Scale

Shades and tints of #CEFF1D

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #CEFF1D sits at step 100.

  1. 50#EBFFC1
    White
    1.07
    Black
    19.60
  2. 100This color#CEFF1D
    White
    1.17
    Black
    17.94
  3. 200#C0EB3B
    White
    1.38
    Black
    15.18
  4. 300#A7D000
    White
    1.80
    Black
    11.66
  5. 400#8EB200
    White
    2.46
    Black
    8.51
  6. 500#769400
    White
    3.49
    Black
    6.00
  7. 600#617A00
    White
    4.89
    Black
    4.29
  8. 700#4D6100
    White
    6.94
    Black
    3.02
  9. 800#374700
    White
    10.17
    Black
    2.06
  10. 900#232E00
    White
    14.36
    Black
    1.46
  11. 950#121900
    White
    18.02
    Black
    1.16

Under each step, white and black text on it; a bold figure passes 4.5:1.

Gamut

How vivid #CEFF1D can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.224; #CEFF1D uses 100% of it. Display P3, which many recent phones and laptops show, reaches 0.245 there: 10% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.224
sRGB edge
0.224
Display P3 edge
0.245
Rec. 2020 edge
0.275
Dominant wavelength
565 nm
Excitation purity
76%
Chromaticity
x 0.3829, y 0.5281
  • This color#CEFF1D
  • Most vivid in sRGB#CEFF1C
  • Most vivid in Display P3oklch(0.932 0.245 122.8)

On a screen without Display P3 the last tile shows the sRGB edge instead.

Use the wider color where screens show it
.accent {
  color: #ceff1d;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.8405 1 0.2348); }
}

Mixing

Mixing #CEFF1D

Each row is the same mix worked out in a different space, with the halfway color at its end. sRGB, which older CSS gradients use, can sag gray or dark in the middle; OKLab keeps the lightness steps even; OKLCH holds chroma and hue as it goes.

White #FFFFFF

  • sRGB50%#E7FF8E
  • OKLab50%#E6FFAC
  • OKLCH50%#E8FFB8

Black #000000

  • sRGB50%#67800F
  • OKLab50%#4E6305
  • OKLCH50%#4E6305

Its complement #EEE3FF

  • sRGB50%#DEF18E
  • OKLab50%#DDF3AF
  • OKLCH50%#FFE1DA
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #ceff1d, white);
color: color-mix(in oklch, #ceff1d 50%, white);

In use

#CEFF1D in an interface

A button, a link, a heading, a focused field, an icon and a chart line in this color, on a light page and a dark one. Each check is a WCAG 2 contrast minimum: 1.4.3 for text, 1.4.11 for the rest.

Light page

  • Button labelText, 4.5:117.94:1 Passes
  • Link and body-size textText, 4.5:11.17:1 Fails
  • Large headingLarge text, 3:11.17:1 Fails
  • Icons, borders and focus ringsNon-text, 3:11.17:1 Fails

For text on this page, the nearest shade that passes is #658000 4.52:1

Dark page

  • Button labelText, 4.5:117.94:1 Passes
  • Link and body-size textText, 4.5:116.00:1 Passes
  • Large headingLarge text, 3:116.00:1 Passes
  • Icons, borders and focus ringsNon-text, 3:116.00:1 Passes

Color vision

How #CEFF1D looks with color blindness

Achromatopsia changes it most, ΔE2000 30.5; protanopia changes it least, 12.6.

Simulated with Machado et al. (2009) at full severity, in linear light.

Simulate a whole page What each type sees

  • Protanopia

    No working red (long-wavelength) cones

    #FFEE00 ΔE2000 12.6

    Distinct

    Reads as pale vivid yellow

  • Deuteranopia

    No working green (medium-wavelength) cones

    #FFED3E ΔE2000 12.6

    Distinct

    Reads as pale vivid yellow

  • Tritanopia

    No working blue (short-wavelength) cones

    #D9F2DA ΔE2000 25.0

    Distinct

    Reads as pale grayish green

  • Achromatopsia

    No cone color vision; lightness only

    #EDEDED ΔE2000 30.5

    Distinct

    Reads as off-white

Pairing check

Checked against its complement, #EEE3FF. Their lightness contrast is only 1.05:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#CEFF1D · #EEE3FF51.0Stays distinct
Protanopia#FFEE00 · #DEE7FF45.9Stays distinct
Deuteranopia#FFED3E · #E0E8FE43.5Stays distinct
Tritanopia#D9F2DA · #ECE7EC18.2Stays distinct
Achromatopsia#EDEDED · #E8E8E81.1Easily confused

Harmony

Color harmonies for #CEFF1D

Its complement is #EEE3FF, a pale grayish violet.

Hue rotations in OKLCH, mapped into sRGB by trimming chroma so hue and lightness stay put.

Open the Harmony Studio
  • Base#CEFF1D
  • Complement#EEE3FF

Complementary

Open in Harmony Studio
  • −30°#FFE89D
  • Base#CEFF1D
  • +30°#AEFFC5

Analogous

Open in Harmony Studio
  • Base#CEFF1D
  • +120°#D5ECFF
  • +240°#FFDFE6

Triadic

Open in Harmony Studio
  • Base#CEFF1D
  • +150°#E1E8FF
  • +210°#FFDCF8

Split-complementary

Open in Harmony Studio

Code

Design tokens

Ready-to-paste tokens in six formats. Rename them to fit your system.

CSS custom property

:root {
  --color-crayola-electric-lime: #ceff1d;
}

Tailwind config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'crayola-electric-lime': '#ceff1d',
      },
    },
  },
};

Tailwind v4 theme

/* app.css — Tailwind CSS v4 */
@import "tailwindcss";

@theme {
  --color-crayola-electric-lime: oklch(0.932 0.224 122.8);
}

Design token (W3C DTCG)

{
  "color": {
    "crayola-electric-lime": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.8078, 1, 0.1137],
        "hex": "#ceff1d"
      },
      "$description": "Crayola Electric Lime"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let crayolaElectricLime = Color(.sRGB, red: 0.808, green: 1.000, blue: 0.114, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val CrayolaElectricLime = Color(0xFFCEFF1D)
}

Matches

The nearest match in each system

The closest CSS name, Tailwind shade, RAL Classic paint and Crayola crayon by ΔE2000; under 2 is hard to tell apart side by side. RAL and Crayola values approximate physical colors.

Neighbors

The eight nearest colors on this site by ΔE2000, closest first. Under 2 is hard to tell apart side by side.

Tools

Open #CEFF1D in the tools

Each opens over this page. More colors live in the Color Library, and every color page is listed on the hub.