CSS named color

Light Green #90EE90

The CSS keyword lightgreen is #90EE90. It is a pale soft green in the green family. In OKLCH it sits at lightness 0.868, chroma 0.156 and hue 144.1°.

Relative luminance: 0.6909
OKLCH L · C · h: 0.868 · 0.156 · 144.1
Best text: Black 14.81:1
Hue family: Green

Inspect this color Check contrast

#90EE90 color codes

HEX: #90EE90
RGB: rgb(144, 238, 144)
HSL: hsl(120, 73%, 75%)
OKLCH: oklch(0.868 0.156 144.1)
OKLab: oklab(0.868 -0.126 0.091)
CIELAB (D65): L* 86.55, a* -46.33, b* 36.95
XYZ (D65): X 47.11, Y 69.09, Z 37.23
CMYK (naive): cmyk(39%, 0%, 39%, 7%)

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.

Legibility

Contrast: is #90EE90 accessible?

Black text on it reaches 14.81:1, passing AAA. White text fails at 1.41:1.

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

14.81:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +83
White text on it

1.41:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc −22
Text is here, unreadable at 1.41:1
As text on black

14.81:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −83
As text on white

1.41:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc +19
Text is here, unreadable at 1.41:1

Nearest versions that pass 4.5:1

For text on white

#27882E 4.51:1

Darkening its OKLCH lightness from 0.87 to 0.55 reaches 4.51:1 on white, keeping the hue.

Compare both in the Contrast System
For text on black

#90EE90 14.81:1

It already reaches 14.81:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #90EE90 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 #90EE90

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #90EE90 sits at step 200.

50#E1FFE0

White
1.07
Black
19.58
100#BEFFBD

White
1.15
Black
18.22
200This color#90EE90

White
1.41
Black
14.81
300#7FD67F

White
1.77
Black
11.82
400#5FBA60

White
2.41
Black
8.67
500#3F9D43

White
3.43
Black
6.11
600#23842A

White
4.76
Black
4.40
700#006C13

White
6.65
Black
3.15
800#004F0B

White
9.89
Black
2.12
900#003304

White
14.23
Black
1.47
950#001D01

White
17.85
Black
1.17

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

Gamut

How vivid #90EE90 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.281; #90EE90 uses 56% of it. Display P3, which many recent phones and laptops show, reaches 0.315 there: 12% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.156
sRGB edge: 0.281
Display P3 edge: 0.315
Rec. 2020 edge: 0.377
Dominant wavelength: 549 nm
Excitation purity: 33%
Chromaticity: x 0.3070, y 0.4503

This color#90EE90
Most vivid in sRGB#00FF3A
Most vivid in Display P3oklch(0.868 0.315 144.1)

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

Use the wider color where screens show it

.accent {
  color: #90ee90;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.386 1 0.2758); }
}

Mixing

Mixing #90EE90

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%#C8F7C8
OKLab50%#CAF8C9
OKLCH50%#CAF8C9

Black #000000

sRGB50%#487748
OKLab50%#345C34
OKLCH50%#345C34

Its complement #FAB9FF

sRGB50%#C5D4C8
OKLab50%#CCD7CC
OKLCH50%#FFC6A1

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #90ee90, white);
color: color-mix(in oklch, #90ee90 50%, white);

In use

#90EE90 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, 4.5:114.81:1 Passes
Link and body-size textText, 4.5:11.41:1 Fails
Large headingLarge text, 3:11.41:1 Fails
Icons, borders and focus ringsNon-text, 3:11.41:1 Fails

For text on this page, the nearest shade that passes is #27882E 4.51:1

Dark page

Button labelText, 4.5:114.81:1 Passes
Link and body-size textText, 4.5:113.21:1 Passes
Large headingLarge text, 3:113.21:1 Passes
Icons, borders and focus ringsNon-text, 3:113.21:1 Passes

Color vision

How #90EE90 looks with color blindness

Achromatopsia changes it most, ΔE2000 25.8; tritanopia changes it least, 18.1.

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

#F2DE89 ΔE2000 22.3

Distinct

Reads as pale soft amber
Deuteranopia

No working green (medium-wavelength) cones

#E4D596 ΔE2000 21.1

Distinct

Reads as pale muted amber
Tritanopia

No working blue (short-wavelength) cones

#85E9D7 ΔE2000 18.1

Distinct

Reads as pale muted cyan
Achromatopsia

No cone color vision; lightness only

#D9D9D9 ΔE2000 25.8

Distinct

Reads as light gray

Pairing check

Checked against its complement, #FAB9FF. Their lightness contrast is only 1.10:1, so where hue collapses, add a label, icon or pattern.

Vision	The pair	ΔE2000	Verdict
Normal vision	#90EE90 · #FAB9FF	68.0	Stays distinct
Protanopia	#F2DE89 · #B3CAFF	43.8	Stays distinct
Deuteranopia	#E4D596 · #C2D2FD	37.4	Stays distinct
Tritanopia	#85E9D7 · #FDC0D2	49.0	Stays distinct
Achromatopsia	#D9D9D9 · #CFCFCF	2.4	Easily confused

Harmony

Color harmonies for #90EE90

Its complement is #FAB9FF, a pale soft magenta.

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

Open the Harmony Studio

Base#90EE90
Complement#FAB9FF

Complementary

Open in Harmony Studio

−30°#D2DF5A
Base#90EE90
+30°#34F4CC

Analogous

Open in Harmony Studio

Base#90EE90
+120°#BED4FF
+240°#FFC2BD

Triadic

Open in Harmony Studio

Base#90EE90
+150°#D6CBFF
+210°#FFBED7

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-lightgreen: #90ee90;
}

Tailwind config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        lightgreen: '#90ee90',
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  --color-lightgreen: oklch(0.868 0.156 144.1);
}

Design token (W3C DTCG)

{
  "color": {
    "lightgreen": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.5647, 0.9333, 0.5647],
        "hex": "#90ee90"
      },
      "$description": "CSS named color lightgreen"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let lightgreen = Color(.sRGB, red: 0.565, green: 0.933, blue: 0.565, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Lightgreen = Color(0xFF90EE90)
}

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.

Tools

Open #90EE90 in the tools

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

Light Green #90EE90

#90EE90 color codes

Contrast: is #90EE90 accessible?

Black text on it

White text on it

As text on black

As text on white

Nearest versions that pass 4.5:1

Adjust #90EE90 live

Shades and tints of #90EE90

How vivid #90EE90 can get

Mixing #90EE90

#90EE90 in an interface

How #90EE90 looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #90EE90

Complementary

Analogous

Triadic

Split-complementary

Design tokens

CSS custom property

Tailwind config

Tailwind v4 theme

Design token (W3C DTCG)

SwiftUI color

Jetpack Compose color

The nearest match in each system

Similar colors

Open #90EE90 in the tools