#83101D#83101D

#83101D is a dark, vivid red. Relative luminance 0.053; OKLCH L 39.3% C 0.147 H 22.7°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#83101D
RGB	rgb(131, 16, 29)
HSL	hsl(353, 78%, 29%)
HSV	hsv(353, 88%, 51%)
CMYK	cmyk(0%, 87.8%, 77.9%, 48.6%)
CIE-LAB	lab(27.54, 46.55, 25.39)
CIE-LCH	lch(27.54, 53.03, 28.60°)
OKLab	oklab(39.34% 0.1357 0.0567)
OKLCH	oklch(39.34% 0.147 22.7)
XYZ	xyz(9.7683, 5.2862, 1.6682)
Luminance	0.0529 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#83101D #108376

analogous

#831057 #83101D #833D10

triadic

#83101D #1D8310 #101D83

tetradic

#83101D #578310 #108376 #3D1083

square

#83101D #578310 #108376 #3D1083

split-complementary

#83101D #10833D #105783

monochromatic

#1B0306 #4C0911 #83101D #BA1729 #E5293E

Accessibility & contrast

On white

10.21

#83101D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#83101D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #83101D

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##83101D	#FFFFFF	#000000	##FFFFFF
##83101D	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36311C

Deuteranopia (green-blind)

#524A19

Tritanopia (blue-blind)

#910017

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #83101d;
/* rgb */ color: rgb(131, 16, 29);
/* oklch */ color: oklch(39.3% 0.147 22.7);

Tailwind

colors: {
  custom: {
    50: '#af5e59',
    500: '#83101d',
    950: '#000000',
  },
}

SCSS

$custom: #83101d;
$custom-light: #af5e59;
$custom-dark: #000000;

JSON

{
  "hex": "#83101d",
  "rgb": {
    "r": 131,
    "g": 16,
    "b": 29
  },
  "hsl": {
    "h": 353.217,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39343,
    "c": 0.14702,
    "h": 22.7
  },
  "luminance": 0.05285
}

Semantic roles & 50–950 ramp

primary

#83101D

secondary

#36B9AA

accent

#F5DF33

background

#FBF5F5

surface

#F6EAE9

border

#D0C6C5

text

#120503

muted

#817978

Preview Lab

Preview with #83101D

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

Preview Lab → · Contrast checker → · Palette generator →