#831510#831510

#831510 is a dark, vivid red. Relative luminance 0.054; OKLCH L 39.5% C 0.145 H 28.6°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#831510
RGB	rgb(131, 21, 16)
HSL	hsl(3, 78%, 29%)
HSV	hsv(3, 88%, 51%)
CMYK	cmyk(0%, 84%, 87.8%, 48.6%)
CIE-LAB	lab(27.85, 44.85, 33.43)
CIE-LCH	lch(27.85, 55.94, 36.70°)
OKLab	oklab(39.53% 0.1274 0.0696)
OKLCH	oklch(39.53% 0.145 28.6)
XYZ	xyz(9.7230, 5.4006, 1.0206)
Luminance	0.0540 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831510 #107E83

analogous

#831045 #831510 #834F10

triadic

#831510 #108315 #151083

tetradic

#831510 #458310 #107E83 #4F1083

square

#831510 #458310 #107E83 #4F1083

split-complementary

#831510 #10834F #104583

monochromatic

#1B0403 #4C0C09 #831510 #BA1E17 #E53129

Accessibility & contrast

On white

10.10

#831510 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#831510 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831510

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831510	#FFFFFF	#000000	##FFFFFF
##831510	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39320E

Deuteranopia (green-blind)

#544A09

Tritanopia (blue-blind)

#910016

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #831510;
/* rgb */ color: rgb(131, 21, 16);
/* oklch */ color: oklch(39.5% 0.145 28.6);

Tailwind

colors: {
  custom: {
    50: '#b05f50',
    500: '#831510',
    950: '#000000',
  },
}

SCSS

$custom: #831510;
$custom-light: #b05f50;
$custom-dark: #000000;

JSON

{
  "hex": "#831510",
  "rgb": {
    "r": 131,
    "g": 21,
    "b": 16
  },
  "hsl": {
    "h": 2.609,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3953,
    "c": 0.14516,
    "h": 28.6
  },
  "luminance": 0.05399
}

Semantic roles & 50–950 ramp

primary

#831510

secondary

#36B3B9

accent

#ECF533

background

#FCF5F4

surface

#F8EAE7

border

#D1C6C3

text

#120502

muted

#817978

Preview Lab

Preview with #831510

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

Preview Lab → · Contrast checker → · Palette generator →