#901A1F#901A1F

#901A1F is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.6% C 0.153 H 24.9°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#901A1F
RGB	rgb(144, 26, 31)
HSL	hsl(357, 69%, 33%)
HSV	hsv(357, 82%, 56%)
CMYK	cmyk(0%, 81.9%, 78.5%, 43.5%)
CIE-LAB	lab(31.28, 47.89, 29.05)
CIE-LCH	lch(31.28, 56.02, 31.24°)
OKLab	oklab(42.61% 0.1386 0.0643)
OKLCH	oklch(42.61% 0.153 24.9)
XYZ	xyz(12.1198, 6.7690, 1.9644)
Luminance	0.0677 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901A1F #1A908B

analogous

#901A5A #901A1F #90501A

triadic

#901A1F #1F901A #1A1F90

tetradic

#901A1F #5A901A #1A908B #501A90

square

#901A1F #5A901A #1A908B #501A90

split-complementary

#901A1F #1A9050 #1A5A90

monochromatic

#280709 #5C1114 #901A1F #C4232A #DE474D

Accessibility & contrast

On white

8.92

#901A1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#901A1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901A1F

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901A1F	#FFFFFF	#000000	##FFFFFF
##901A1F	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#40391E

Deuteranopia (green-blind)

#5C531A

Tritanopia (blue-blind)

#9F001D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901a1f;
/* rgb */ color: rgb(144, 26, 31);
/* oklch */ color: oklch(42.6% 0.153 24.9);

Tailwind

colors: {
  custom: {
    50: '#b9635b',
    500: '#901a1f',
    950: '#000000',
  },
}

SCSS

$custom: #901a1f;
$custom-light: #b9635b;
$custom-dark: #000000;

JSON

{
  "hex": "#901a1f",
  "rgb": {
    "r": 144,
    "g": 26,
    "b": 31
  },
  "hsl": {
    "h": 357.458,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.4261,
    "c": 0.15276,
    "h": 24.9
  },
  "luminance": 0.06767
}

Semantic roles & 50–950 ramp

primary

#901A1F

secondary

#47BFBA

accent

#ECE53C

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #901A1F

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

Preview Lab → · Contrast checker → · Palette generator →