#901A21#901A21

#901A21 is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.6% C 0.153 H 24.1°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#901A21
RGB	rgb(144, 26, 33)
HSL	hsl(356, 69%, 33%)
HSV	hsv(356, 82%, 56%)
CMYK	cmyk(0%, 81.9%, 77.1%, 43.5%)
CIE-LAB	lab(31.30, 47.97, 27.85)
CIE-LCH	lch(31.30, 55.47, 30.14°)
OKLab	oklab(42.64% 0.1393 0.0622)
OKLCH	oklch(42.64% 0.153 24.1)
XYZ	xyz(12.1470, 6.7798, 2.1076)
Luminance	0.0678 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901A21 #1A9089

analogous

#901A5C #901A21 #904E1A

triadic

#901A21 #21901A #1A2190

tetradic

#901A21 #5C901A #1A9089 #4E1A90

square

#901A21 #5C901A #1A9089 #4E1A90

split-complementary

#901A21 #1A904E #1A5C90

monochromatic

#280709 #5C1115 #901A21 #C4232D #DE4750

Accessibility & contrast

On white

8.91

#901A21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#901A21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901A21

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901A21	#FFFFFF	#000000	##FFFFFF
##901A21	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3920

Deuteranopia (green-blind)

#5C531C

Tritanopia (blue-blind)

#9F001E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901a21;
/* rgb */ color: rgb(144, 26, 33);
/* oklch */ color: oklch(42.6% 0.153 24.1);

Tailwind

colors: {
  custom: {
    50: '#b9635c',
    500: '#901a21',
    950: '#000000',
  },
}

SCSS

$custom: #901a21;
$custom-light: #b9635c;
$custom-dark: #000000;

JSON

{
  "hex": "#901a21",
  "rgb": {
    "r": 144,
    "g": 26,
    "b": 33
  },
  "hsl": {
    "h": 356.441,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.42637,
    "c": 0.15256,
    "h": 24.1
  },
  "luminance": 0.06778
}

Semantic roles & 50–950 ramp

primary

#901A21

secondary

#47BFB8

accent

#ECE23C

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #901A21

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →