#831F1D#831F1D

#831F1D is a dark, vivid red. Relative luminance 0.059; OKLCH L 40.5% C 0.136 H 26.6°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#831F1D
RGB	rgb(131, 31, 29)
HSL	hsl(1, 64%, 31%)
HSV	hsv(1, 78%, 51%)
CMYK	cmyk(0%, 76.3%, 77.9%, 48.6%)
CIE-LAB	lab(29.15, 42.02, 27.18)
CIE-LCH	lch(29.15, 50.04, 32.90°)
OKLab	oklab(40.54% 0.1213 0.0606)
OKLCH	oklch(40.54% 0.136 26.6)
XYZ	xyz(10.0730, 5.8955, 1.7697)
Luminance	0.0589 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831F1D #1D8183

analogous

#831D4E #831F1D #83521D

triadic

#831F1D #1D831F #1F1D83

tetradic

#831F1D #4E831D #1D8183 #521D83

square

#831F1D #4E831D #1D8183 #521D83

split-complementary

#831F1D #1D8352 #1D4E83

monochromatic

#1F0707 #511312 #831F1D #B52B28 #D64745

Accessibility & contrast

On white

9.64

#831F1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#831F1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831F1D

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831F1D	#FFFFFF	#000000	##FFFFFF
##831F1D	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D371C

Deuteranopia (green-blind)

#564D19

Tritanopia (blue-blind)

#910020

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #831f1d;
/* rgb */ color: rgb(131, 31, 29);
/* oklch */ color: oklch(40.5% 0.136 26.6);

Tailwind

colors: {
  custom: {
    50: '#af6359',
    500: '#831f1d',
    950: '#000000',
  },
}

SCSS

$custom: #831f1d;
$custom-light: #af6359;
$custom-dark: #000000;

JSON

{
  "hex": "#831f1d",
  "rgb": {
    "r": 131,
    "g": 31,
    "b": 29
  },
  "hsl": {
    "h": 1.176,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.4054,
    "c": 0.13555,
    "h": 26.6
  },
  "luminance": 0.05894
}

Semantic roles & 50–950 ramp

primary

#831F1D

secondary

#46B4B6

accent

#E4E741

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120603

muted

#817A78

Preview Lab

Preview with #831F1D

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

Preview Lab → · Contrast checker → · Palette generator →