#83101F#83101F

#83101F is a dark, vivid red. Relative luminance 0.053; OKLCH L 39.4% C 0.147 H 21.8°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#83101F
RGB	rgb(131, 16, 31)
HSL	hsl(352, 78%, 29%)
HSV	hsv(352, 88%, 51%)
CMYK	cmyk(0%, 87.8%, 76.3%, 48.6%)
CIE-LAB	lab(27.56, 46.64, 24.13)
CIE-LCH	lch(27.56, 52.51, 27.36°)
OKLab	oklab(39.37% 0.1364 0.0545)
OKLCH	oklch(39.37% 0.147 21.8)
XYZ	xyz(9.7939, 5.2964, 1.8027)
Luminance	0.0529 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#83101F #108374

analogous

#831059 #83101F #833B10

triadic

#83101F #1F8310 #101F83

tetradic

#83101F #598310 #108374 #3B1083

square

#83101F #598310 #108374 #3B1083

split-complementary

#83101F #10833B #105983

monochromatic

#1B0306 #4C0912 #83101F #BA172C #E52941

Accessibility & contrast

On white

10.20

#83101F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#83101F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #83101F

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##83101F	#FFFFFF	#000000	##FFFFFF
##83101F	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36321E

Deuteranopia (green-blind)

#524A1B

Tritanopia (blue-blind)

#910017

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #83101f;
/* rgb */ color: rgb(131, 16, 31);
/* oklch */ color: oklch(39.4% 0.147 21.8);

Tailwind

colors: {
  custom: {
    50: '#af5e5a',
    500: '#83101f',
    950: '#000000',
  },
}

SCSS

$custom: #83101f;
$custom-light: #af5e5a;
$custom-dark: #000000;

JSON

{
  "hex": "#83101f",
  "rgb": {
    "r": 131,
    "g": 16,
    "b": 31
  },
  "hsl": {
    "h": 352.174,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39373,
    "c": 0.14687,
    "h": 21.8
  },
  "luminance": 0.05295
}

Semantic roles & 50–950 ramp

primary

#83101F

secondary

#36B9A8

accent

#F5DB33

background

#FBF5F5

surface

#F6EAE9

border

#D0C6C5

text

#120504

muted

#817979

Preview Lab

Preview with #83101F

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

Preview Lab → · Contrast checker → · Palette generator →