#83101C#83101C

#83101C is a dark, vivid red. Relative luminance 0.053; OKLCH L 39.3% C 0.147 H 23.1°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#83101C
RGB	rgb(131, 16, 28)
HSL	hsl(354, 78%, 29%)
HSV	hsv(354, 88%, 51%)
CMYK	cmyk(0%, 87.8%, 78.6%, 48.6%)
CIE-LAB	lab(27.52, 46.52, 26.01)
CIE-LCH	lch(27.52, 53.29, 29.21°)
OKLab	oklab(39.33% 0.1353 0.0578)
OKLCH	oklch(39.33% 0.147 23.1)
XYZ	xyz(9.7562, 5.2813, 1.6041)
Luminance	0.0528 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#83101C #108377

analogous

#831056 #83101C #833E10

triadic

#83101C #1C8310 #101C83

tetradic

#83101C #568310 #108377 #3E1083

square

#83101C #568310 #108377 #3E1083

split-complementary

#83101C #10833E #105683

monochromatic

#1B0306 #4C0910 #83101C #BA1728 #E5293C

Accessibility & contrast

On white

10.21

#83101C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#83101C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #83101C

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##83101C	#FFFFFF	#000000	##FFFFFF
##83101C	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)

#37311B

Deuteranopia (green-blind)

#524A17

Tritanopia (blue-blind)

#910016

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #83101c;
/* rgb */ color: rgb(131, 16, 28);
/* oklch */ color: oklch(39.3% 0.147 23.1);

Tailwind

colors: {
  custom: {
    50: '#af5e58',
    500: '#83101c',
    950: '#000000',
  },
}

SCSS

$custom: #83101c;
$custom-light: #af5e58;
$custom-dark: #000000;

JSON

{
  "hex": "#83101c",
  "rgb": {
    "r": 131,
    "g": 16,
    "b": 28
  },
  "hsl": {
    "h": 353.739,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39329,
    "c": 0.14709,
    "h": 23.1
  },
  "luminance": 0.0528
}

Semantic roles & 50–950 ramp

primary

#83101C

secondary

#36B9AB

accent

#F5E133

background

#FBF5F5

surface

#F6EAE9

border

#D0C6C5

text

#120503

muted

#817978

Preview Lab

Preview with #83101C

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

Preview Lab → · Contrast checker → · Palette generator →