#83101A#83101A

#83101A is a dark, vivid red. Relative luminance 0.053; OKLCH L 39.3% C 0.147 H 24.0°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#83101A
RGB	rgb(131, 16, 26)
HSL	hsl(355, 78%, 29%)
HSV	hsv(355, 88%, 51%)
CMYK	cmyk(0%, 87.8%, 80.2%, 48.6%)
CIE-LAB	lab(27.50, 46.44, 27.24)
CIE-LCH	lch(27.50, 53.84, 30.39°)
OKLab	oklab(39.3% 0.1346 0.0598)
OKLCH	oklch(39.3% 0.147 24)
XYZ	xyz(9.7330, 5.2721, 1.4822)
Luminance	0.0527 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#83101A #108379

analogous

#831054 #83101A #834010

triadic

#83101A #1A8310 #101A83

tetradic

#83101A #548310 #108379 #401083

square

#83101A #548310 #108379 #401083

split-complementary

#83101A #108340 #105483

monochromatic

#1B0305 #4C090F #83101A #BA1725 #E52939

Accessibility & contrast

On white

10.22

#83101A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#83101A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #83101A

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##83101A	#FFFFFF	#000000	##FFFFFF
##83101A	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373119

Deuteranopia (green-blind)

#534915

Tritanopia (blue-blind)

#910016

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #83101a;
/* rgb */ color: rgb(131, 16, 26);
/* oklch */ color: oklch(39.3% 0.147 24.0);

Tailwind

colors: {
  custom: {
    50: '#b05e56',
    500: '#83101a',
    950: '#000000',
  },
}

SCSS

$custom: #83101a;
$custom-light: #b05e56;
$custom-dark: #000000;

JSON

{
  "hex": "#83101a",
  "rgb": {
    "r": 131,
    "g": 16,
    "b": 26
  },
  "hsl": {
    "h": 354.783,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39302,
    "c": 0.14727,
    "h": 24
  },
  "luminance": 0.0527
}

Semantic roles & 50–950 ramp

primary

#83101A

secondary

#36B9AD

accent

#F5E433

background

#FBF5F5

surface

#F7EAE9

border

#D0C6C5

text

#120503

muted

#817978

Preview Lab

Preview with #83101A

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

Preview Lab → · Contrast checker → · Palette generator →