#831010#831010

#831010 is a dark, vivid red. Relative luminance 0.052; OKLCH L 39.2% C 0.148 H 27.6°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#831010
RGB	rgb(131, 16, 16)
HSL	hsl(0, 78%, 29%)
HSV	hsv(0, 88%, 51%)
CMYK	cmyk(0%, 87.8%, 87.8%, 48.6%)
CIE-LAB	lab(27.39, 46.13, 33.03)
CIE-LCH	lch(27.39, 56.74, 35.60°)
OKLab	oklab(39.19% 0.1314 0.0687)
OKLCH	oklch(39.19% 0.148 27.6)
XYZ	xyz(9.6401, 5.2349, 0.9930)
Luminance	0.0523 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831010 #108383

analogous

#83104A #831010 #834A10

triadic

#831010 #108310 #101083

tetradic

#831010 #4A8310 #108383 #4A1083

square

#831010 #4A8310 #108383 #4A1083

split-complementary

#831010 #10834A #104A83

monochromatic

#1B0303 #4C0909 #831010 #BA1717 #E52929

Accessibility & contrast

On white

10.26

#831010 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#831010 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831010

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831010	#FFFFFF	#000000	##FFFFFF
##831010	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38310E

Deuteranopia (green-blind)

#534908

Tritanopia (blue-blind)

#910012

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #831010;
/* rgb */ color: rgb(131, 16, 16);
/* oklch */ color: oklch(39.2% 0.148 27.6);

Tailwind

colors: {
  custom: {
    50: '#b05d4f',
    500: '#831010',
    950: '#000000',
  },
}

SCSS

$custom: #831010;
$custom-light: #b05d4f;
$custom-dark: #000000;

JSON

{
  "hex": "#831010",
  "rgb": {
    "r": 131,
    "g": 16,
    "b": 16
  },
  "hsl": {
    "h": 0,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39194,
    "c": 0.14829,
    "h": 27.6
  },
  "luminance": 0.05233
}

Semantic roles & 50–950 ramp

primary

#831010

secondary

#36B9B9

accent

#F5F533

background

#FCF5F4

surface

#F8EAE7

border

#D1C6C3

text

#120502

muted

#817978

Preview Lab

Preview with #831010

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

Preview Lab → · Contrast checker → · Palette generator →