#831B29#831B29

#831B29 is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.4% C 0.138 H 19.1°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#831B29
RGB	rgb(131, 27, 41)
HSL	hsl(352, 66%, 31%)
HSV	hsv(352, 79%, 51%)
CMYK	cmyk(0%, 79.4%, 68.7%, 48.6%)
CIE-LAB	lab(28.83, 44.02, 19.13)
CIE-LCH	lch(28.83, 48.00, 23.49°)
OKLab	oklab(40.36% 0.1304 0.0452)
OKLCH	oklch(40.36% 0.138 19.1)
XYZ	xyz(10.1534, 5.7708, 2.6766)
Luminance	0.0577 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831B29 #1B8375

analogous

#831B5D #831B29 #83411B

triadic

#831B29 #29831B #1B2983

tetradic

#831B29 #5D831B #1B8375 #411B83

square

#831B29 #5D831B #1B8375 #411B83

split-complementary

#831B29 #1B8341 #1B5D83

monochromatic

#1E0609 #501119 #831B29 #B62539 #D84155

Accessibility & contrast

On white

9.75

#831B29 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#831B29 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831B29

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831B29	#FFFFFF	#000000	##FFFFFF
##831B29	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393629

Deuteranopia (green-blind)

#544C26

Tritanopia (blue-blind)

#900021

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831b29;
/* rgb */ color: rgb(131, 27, 41);
/* oklch */ color: oklch(40.4% 0.138 19.1);

Tailwind

colors: {
  custom: {
    50: '#ae6262',
    500: '#831b29',
    950: '#000000',
  },
}

SCSS

$custom: #831b29;
$custom-light: #ae6262;
$custom-dark: #000000;

JSON

{
  "hex": "#831b29",
  "rgb": {
    "r": 131,
    "g": 27,
    "b": 41
  },
  "hsl": {
    "h": 351.923,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.4036,
    "c": 0.13804,
    "h": 19.1
  },
  "luminance": 0.05769
}

Semantic roles & 50–950 ramp

primary

#831B29

secondary

#43B6A7

accent

#E9D23F

background

#FBF6F5

surface

#F6EBEA

border

#D0C6C6

text

#120605

muted

#817A79

Preview Lab

Preview with #831B29

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

Preview Lab → · Contrast checker → · Palette generator →