#831F2B#831F2B

#831F2B is a dark, vivid red. Relative luminance 0.060; OKLCH L 40.8% C 0.134 H 19.2°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#831F2B
RGB	rgb(131, 31, 43)
HSL	hsl(353, 62%, 32%)
HSV	hsv(353, 76%, 51%)
CMYK	cmyk(0%, 76.3%, 67.2%, 48.6%)
CIE-LAB	lab(29.36, 42.74, 18.50)
CIE-LCH	lch(29.36, 46.58, 23.41°)
OKLab	oklab(40.77% 0.1268 0.0441)
OKLCH	oklch(40.77% 0.134 19.2)
XYZ	xyz(10.2872, 5.9812, 2.8978)
Luminance	0.0598 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831F2B #1F8377

analogous

#831F5D #831F2B #83451F

triadic

#831F2B #2B831F #1F2B83

tetradic

#831F2B #5D831F #1F8377 #451F83

square

#831F2B #5D831F #1F8377 #451F83

split-complementary

#831F2B #1F8345 #1F5D83

monochromatic

#20080B #52131B #831F2B #B42B3B #D44959

Accessibility & contrast

On white

9.56

#831F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#831F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831F2B

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831F2B	#FFFFFF	#000000	##FFFFFF
##831F2B	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B382B

Deuteranopia (green-blind)

#544D28

Tritanopia (blue-blind)

#900024

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #831f2b;
/* rgb */ color: rgb(131, 31, 43);
/* oklch */ color: oklch(40.8% 0.134 19.2);

Tailwind

colors: {
  custom: {
    50: '#ae6364',
    500: '#831f2b',
    950: '#000000',
  },
}

SCSS

$custom: #831f2b;
$custom-light: #ae6364;
$custom-dark: #000000;

JSON

{
  "hex": "#831f2b",
  "rgb": {
    "r": 131,
    "g": 31,
    "b": 43
  },
  "hsl": {
    "h": 352.8,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.40772,
    "c": 0.1342,
    "h": 19.2
  },
  "luminance": 0.0598
}

Semantic roles & 50–950 ramp

primary

#831F2B

secondary

#48B6A9

accent

#E5D143

background

#FBF6F5

surface

#F6EBEA

border

#D0C6C6

text

#110605

muted

#807A79

Preview Lab

Preview with #831F2B

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

Preview Lab → · Contrast checker → · Palette generator →