#831B2F#831B2F

#831B2F is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.5% C 0.138 H 15.6°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#831B2F
RGB	rgb(131, 27, 47)
HSL	hsl(348, 66%, 31%)
HSV	hsv(348, 79%, 51%)
CMYK	cmyk(0%, 79.4%, 64.1%, 48.6%)
CIE-LAB	lab(28.94, 44.40, 15.32)
CIE-LCH	lch(28.94, 46.97, 19.03°)
OKLab	oklab(40.48% 0.1329 0.0372)
OKLCH	oklch(40.48% 0.138 15.6)
XYZ	xyz(10.2662, 5.8159, 3.2708)
Luminance	0.0581 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831B2F #1B836F

analogous

#831B63 #831B2F #833B1B

triadic

#831B2F #2F831B #1B2F83

tetradic

#831B2F #63831B #1B836F #3B1B83

square

#831B2F #63831B #1B836F #3B1B83

split-complementary

#831B2F #1B833B #1B6383

monochromatic

#1E060B #50111D #831B2F #B62541 #D8415E

Accessibility & contrast

On white

9.71

#831B2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#831B2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831B2F

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831B2F	#FFFFFF	#000000	##FFFFFF
##831B2F	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39362F

Deuteranopia (green-blind)

#534C2C

Tritanopia (blue-blind)

#900024

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831b2f;
/* rgb */ color: rgb(131, 27, 47);
/* oklch */ color: oklch(40.5% 0.138 15.6);

Tailwind

colors: {
  custom: {
    50: '#ae6267',
    500: '#831b2f',
    950: '#000000',
  },
}

SCSS

$custom: #831b2f;
$custom-light: #ae6267;
$custom-dark: #000000;

JSON

{
  "hex": "#831b2f",
  "rgb": {
    "r": 131,
    "g": 27,
    "b": 47
  },
  "hsl": {
    "h": 348.462,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.40484,
    "c": 0.13802,
    "h": 15.6
  },
  "luminance": 0.05814
}

Semantic roles & 50–950 ramp

primary

#831B2F

secondary

#43B6A0

accent

#E9C83F

background

#FBF6F6

surface

#F6EBEB

border

#D0C6C6

text

#110606

muted

#807A7A

Preview Lab

Preview with #831B2F

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

Preview Lab → · Contrast checker → · Palette generator →