#831019#831019

#831019 is a dark, vivid red. Relative luminance 0.053; OKLCH L 39.3% C 0.147 H 24.4°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#831019
RGB	rgb(131, 16, 25)
HSL	hsl(355, 78%, 29%)
HSV	hsv(355, 88%, 51%)
CMYK	cmyk(0%, 87.8%, 80.9%, 48.6%)
CIE-LAB	lab(27.48, 46.40, 27.85)
CIE-LCH	lch(27.48, 54.12, 30.97°)
OKLab	oklab(39.29% 0.1342 0.0609)
OKLCH	oklch(39.29% 0.147 24.4)
XYZ	xyz(9.7220, 5.2677, 1.4244)
Luminance	0.0527 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831019 #10837A

analogous

#831053 #831019 #834110

triadic

#831019 #198310 #101983

tetradic

#831019 #538310 #10837A #411083

square

#831019 #538310 #10837A #411083

split-complementary

#831019 #108341 #105383

monochromatic

#1B0305 #4C090F #831019 #BA1723 #E52937

Accessibility & contrast

On white

10.23

#831019 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#831019 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831019

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831019	#FFFFFF	#000000	##FFFFFF
##831019	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373118

Deuteranopia (green-blind)

#534914

Tritanopia (blue-blind)

#910015

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #831019;
/* rgb */ color: rgb(131, 16, 25);
/* oklch */ color: oklch(39.3% 0.147 24.4);

Tailwind

colors: {
  custom: {
    50: '#b05e56',
    500: '#831019',
    950: '#000000',
  },
}

SCSS

$custom: #831019;
$custom-light: #b05e56;
$custom-dark: #000000;

JSON

{
  "hex": "#831019",
  "rgb": {
    "r": 131,
    "g": 16,
    "b": 25
  },
  "hsl": {
    "h": 355.304,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39289,
    "c": 0.14737,
    "h": 24.4
  },
  "luminance": 0.05266
}

Semantic roles & 50–950 ramp

primary

#831019

secondary

#36B9AF

accent

#F5E633

background

#FBF5F5

surface

#F7EAE9

border

#D0C6C5

text

#120503

muted

#817978

Preview Lab

Preview with #831019

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

Preview Lab → · Contrast checker → · Palette generator →