CSS named color

Maroon #800000

The CSS keyword maroon is #800000. It is a dark soft red in the red family. In OKLCH it sits at lightness 0.377, chroma 0.155 and hue 29.2°.

Relative luminance: 0.0459
OKLCH L · C · h: 0.377 · 0.155 · 29.2
Best text: White 10.94:1
Hue family: Red

Inspect this color Check contrast

#800000 color codes

HEX: #800000
RGB: rgb(128, 0, 0)
HSL: hsl(0, 100%, 25%)
OKLCH: oklch(0.377 0.155 29.2)
OKLab: oklab(0.377 0.135 0.075)
CIELAB (D65): L* 25.54, a* 48.05, b* 38.06
XYZ (D65): X 8.90, Y 4.59, Z 0.42
CMYK (naive): cmyk(0%, 100%, 100%, 50%)

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 #800000 accessible?

White text on it reaches 10.94:1, passing AAA. Black text fails at 1.91:1.

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

1.91:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc +11
White text on it

10.94:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −97
As text on black

1.91:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc −9
As text on white

10.94:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +92

Nearest versions that pass 4.5:1

For text on white

#800000 10.94:1

It already reaches 10.94:1 on white, so no change is needed.
For text on black

#C64F41 4.59:1

Lightening its OKLCH lightness from 0.38 to 0.58 reaches 4.59:1 on black, keeping the hue.

Compare both in the Contrast System

Checking another pair? Use the Contrast Checker.

Studio

Adjust #800000 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 #800000

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #800000 sits at step 800.

50#FFF2EF

White
1.09
Black
19.19
100#FFE4E0

White
1.20
Black
17.42
200#FFC8BF

White
1.47
Black
14.26
300#FFA193

White
1.94
Black
10.77
400#F17868

White
2.75
Black
7.62
500#D35B4C

White
3.91
Black
5.37
600#B74236

White
5.46
Black
3.84
700#9A2A20

White
7.70
Black
2.72
800This color#800000

White
10.94
Black
1.91
900#540000

White
15.25
Black
1.37
950#330000

White
18.40
Black
1.14

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

Gamut

How vivid #800000 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.155; #800000 uses 100% of it. Display P3, which many recent phones and laptops show, reaches 0.173 there: 12% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.155
sRGB edge: 0.155
Display P3 edge: 0.173
Rec. 2020 edge: 0.172
Dominant wavelength: 611 nm
Excitation purity: 92%
Chromaticity: x 0.6400, y 0.3300

This color#800000
Most vivid in sRGB#800000
Most vivid in Display P3oklch(0.377 0.173 29.2)

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

Use the wider color where screens show it

.accent {
  color: #800000;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.479 0.0049 0); }
}

Mixing

Mixing #800000

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%#C08080
OKLab50%#C6897F
OKLCH50%#C6897F

Black #000000

sRGB50%#400000
OKLab50%#2E0000
OKLCH50%#2E0000

Its complement #004B54

sRGB50%#40262A
OKLab50%#573934
OKLCH50%#3D4800

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #800000, white);
color: color-mix(in oklch, #800000 50%, white);

In use

#800000 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, 4.5:110.94:1 Passes
Link and body-size textText, 4.5:110.94:1 Passes
Large headingLarge text, 3:110.94:1 Passes
Icons, borders and focus ringsNon-text, 3:110.94:1 Passes

Dark page

Button labelText, 4.5:110.94:1 Passes
Link and body-size textText, 4.5:11.71:1 Fails
Large headingLarge text, 3:11.71:1 Fails
Icons, borders and focus ringsNon-text, 3:11.71:1 Fails

For text on this page, the nearest shade that passes is #CE5749 4.53:1

Color vision

How #800000 looks with color blindness

Deuteranopia changes it most, ΔE2000 32.8; tritanopia changes it least, 2.7.

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

#332C00 ΔE2000 30.4

Distinct

Reads as very dark muted brown
Deuteranopia

No working green (medium-wavelength) cones

#504600 ΔE2000 32.8

Distinct

Reads as dark muted yellow
Tritanopia

No working blue (short-wavelength) cones

#8E0003 ΔE2000 2.7

Close match

Reads as dark soft red
Achromatopsia

No cone color vision; lightness only

#3C3C3C ΔE2000 26.1

Distinct

Reads as dark gray

Pairing check

Checked against its complement, #004B54. Their lightness contrast is only 1.11:1, so where hue collapses, add a label, icon or pattern.

Vision	The pair	ΔE2000	Verdict
Normal vision	#800000 · #004B54	43.1	Stays distinct
Protanopia	#332C00 · #434855	26.5	Stays distinct
Deuteranopia	#504600 · #394054	33.3	Stays distinct
Tritanopia	#8E0003 · #004F4E	46.9	Stays distinct
Achromatopsia	#3C3C3C · #434343	2.3	Easily confused

Harmony

Color harmonies for #800000

Its complement is #004B54, a dark muted teal, on the cool side of the wheel.

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

Open the Harmony Studio

Base#800000
Complement#004B54

Complementary

Open in Harmony Studio

−30°#7A003F
Base#800000
+30°#633300

Analogous

Open in Harmony Studio

Base#800000
+120°#00501F
+240°#233492

Triadic

Open in Harmony Studio

Base#800000
+150°#004D42
+210°#00466A

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-maroon: #800000;
}

Tailwind config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        maroon: '#800000',
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  --color-maroon: oklch(0.377 0.155 29.2);
}

Design token (W3C DTCG)

{
  "color": {
    "maroon": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.502, 0, 0],
        "hex": "#800000"
      },
      "$description": "CSS named color maroon"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let maroon = Color(.sRGB, red: 0.502, green: 0.000, blue: 0.000, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Maroon = Color(0xFF800000)
}

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 #800000 in the tools

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

Maroon #800000

#800000 color codes

Contrast: is #800000 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 #800000 live

Shades and tints of #800000

How vivid #800000 can get

Mixing #800000

#800000 in an interface

How #800000 looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #800000

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 #800000 in the tools