#83102B#83102B

#83102B is a dark, vivid red. Relative luminance 0.054; OKLCH L 39.6% C 0.147 H 15.6°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#83102B
RGB	rgb(131, 16, 43)
HSL	hsl(346, 78%, 29%)
HSV	hsv(346, 88%, 51%)
CMYK	cmyk(0%, 87.8%, 67.2%, 48.6%)
CIE-LAB	lab(27.77, 47.25, 16.46)
CIE-LCH	lch(27.77, 50.03, 19.20°)
OKLab	oklab(39.59% 0.1412 0.0394)
OKLCH	oklch(39.59% 0.147 15.6)
XYZ	xyz(9.9825, 5.3719, 2.7963)
Luminance	0.0537 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#83102B #108368

analogous

#831065 #83102B #832F10

triadic

#83102B #2B8310 #102B83

tetradic

#83102B #658310 #108368 #2F1083

square

#83102B #658310 #108368 #2F1083

split-complementary

#83102B #10832F #106583

monochromatic

#1B0309 #4C0919 #83102B #BA173D #E52955

Accessibility & contrast

On white

10.13

#83102B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#83102B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #83102B

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##83102B	#FFFFFF	#000000	##FFFFFF
##83102B	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35322B

Deuteranopia (green-blind)

#514A28

Tritanopia (blue-blind)

#90001D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #83102b;
/* rgb */ color: rgb(131, 16, 43);
/* oklch */ color: oklch(39.6% 0.147 15.6);

Tailwind

colors: {
  custom: {
    50: '#ae5e64',
    500: '#83102b',
    950: '#000000',
  },
}

SCSS

$custom: #83102b;
$custom-light: #ae5e64;
$custom-dark: #000000;

JSON

{
  "hex": "#83102b",
  "rgb": {
    "r": 131,
    "g": 16,
    "b": 43
  },
  "hsl": {
    "h": 345.913,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39591,
    "c": 0.14663,
    "h": 15.6
  },
  "luminance": 0.0537
}

Semantic roles & 50–950 ramp

primary

#83102B

secondary

#36B99A

accent

#F5C733

background

#FBF5F5

surface

#F6EAEA

border

#D0C6C6

text

#120505

muted

#817979

Preview Lab

Preview with #83102B

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

Preview Lab → · Contrast checker → · Palette generator →