#831023#831023

#831023 is a dark, vivid red. Relative luminance 0.053; OKLCH L 39.4% C 0.147 H 19.8°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#831023
RGB	rgb(131, 16, 35)
HSL	hsl(350, 78%, 29%)
HSV	hsv(350, 88%, 51%)
CMYK	cmyk(0%, 87.8%, 73.3%, 48.6%)
CIE-LAB	lab(27.62, 46.82, 21.60)
CIE-LCH	lch(27.62, 51.56, 24.76°)
OKLab	oklab(39.44% 0.138 0.0498)
OKLCH	oklch(39.44% 0.147 19.8)
XYZ	xyz(9.8499, 5.3188, 2.0978)
Luminance	0.0532 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831023 #108370

analogous

#83105D #831023 #833710

triadic

#831023 #238310 #102383

tetradic

#831023 #5D8310 #108370 #371083

square

#831023 #5D8310 #108370 #371083

split-complementary

#831023 #108337 #105D83

monochromatic

#1B0307 #4C0914 #831023 #BA1732 #E52948

Accessibility & contrast

On white

10.18

#831023 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#831023 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831023

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831023	#FFFFFF	#000000	##FFFFFF
##831023	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363223

Deuteranopia (green-blind)

#524A1F

Tritanopia (blue-blind)

#910019

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #831023;
/* rgb */ color: rgb(131, 16, 35);
/* oklch */ color: oklch(39.4% 0.147 19.8);

Tailwind

colors: {
  custom: {
    50: '#af5e5d',
    500: '#831023',
    950: '#000000',
  },
}

SCSS

$custom: #831023;
$custom-light: #af5e5d;
$custom-dark: #000000;

JSON

{
  "hex": "#831023",
  "rgb": {
    "r": 131,
    "g": 16,
    "b": 35
  },
  "hsl": {
    "h": 350.087,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39438,
    "c": 0.14666,
    "h": 19.8
  },
  "luminance": 0.05317
}

Semantic roles & 50–950 ramp

primary

#831023

secondary

#36B9A3

accent

#F5D533

background

#FBF5F5

surface

#F6EAE9

border

#D0C6C5

text

#120504

muted

#817979

Preview Lab

Preview with #831023

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

Preview Lab → · Contrast checker → · Palette generator →