#831013#831013

#831013 is a dark, vivid red. Relative luminance 0.052; OKLCH L 39.2% C 0.148 H 26.6°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#831013
RGB	rgb(131, 16, 19)
HSL	hsl(358, 78%, 29%)
HSV	hsv(358, 88%, 51%)
CMYK	cmyk(0%, 87.8%, 85.5%, 48.6%)
CIE-LAB	lab(27.42, 46.21, 31.37)
CIE-LCH	lch(27.42, 55.86, 34.17°)
OKLab	oklab(39.22% 0.1323 0.0663)
OKLCH	oklch(39.22% 0.148 26.6)
XYZ	xyz(9.6641, 5.2445, 1.1194)
Luminance	0.0524 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831013 #108380

analogous

#83104D #831013 #834710

triadic

#831013 #138310 #101383

tetradic

#831013 #4D8310 #108380 #471083

square

#831013 #4D8310 #108380 #471083

split-complementary

#831013 #108347 #104D83

monochromatic

#1B0304 #4C090B #831013 #BA171B #E5292D

Accessibility & contrast

On white

10.25

#831013 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#831013 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831013

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831013	#FFFFFF	#000000	##FFFFFF
##831013	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373111

Deuteranopia (green-blind)

#53490D

Tritanopia (blue-blind)

#910013

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #831013;
/* rgb */ color: rgb(131, 16, 19);
/* oklch */ color: oklch(39.2% 0.148 26.6);

Tailwind

colors: {
  custom: {
    50: '#b05d51',
    500: '#831013',
    950: '#000000',
  },
}

SCSS

$custom: #831013;
$custom-light: #b05d51;
$custom-dark: #000000;

JSON

{
  "hex": "#831013",
  "rgb": {
    "r": 131,
    "g": 16,
    "b": 19
  },
  "hsl": {
    "h": 358.435,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39222,
    "c": 0.14797,
    "h": 26.6
  },
  "luminance": 0.05243
}

Semantic roles & 50–950 ramp

primary

#831013

secondary

#36B9B5

accent

#F5F033

background

#FBF5F4

surface

#F7EAE7

border

#D0C6C3

text

#120502

muted

#817978

Preview Lab

Preview with #831013

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

Preview Lab → · Contrast checker → · Palette generator →