#831B2C#831B2C

#831B2C is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.4% C 0.138 H 17.4°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#831B2C
RGB	rgb(131, 27, 44)
HSL	hsl(350, 66%, 31%)
HSV	hsv(350, 79%, 51%)
CMYK	cmyk(0%, 79.4%, 66.4%, 48.6%)
CIE-LAB	lab(28.88, 44.21, 17.23)
CIE-LCH	lch(28.88, 47.44, 21.29°)
OKLab	oklab(40.42% 0.1317 0.0413)
OKLCH	oklch(40.42% 0.138 17.4)
XYZ	xyz(10.2077, 5.7925, 2.9630)
Luminance	0.0579 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831B2C #1B8372

analogous

#831B60 #831B2C #833E1B

triadic

#831B2C #2C831B #1B2C83

tetradic

#831B2C #60831B #1B8372 #3E1B83

square

#831B2C #60831B #1B8372 #3E1B83

split-complementary

#831B2C #1B833E #1B6083

monochromatic

#1E060A #50111B #831B2C #B6253D #D84159

Accessibility & contrast

On white

9.73

#831B2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#831B2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831B2C

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831B2C	#FFFFFF	#000000	##FFFFFF
##831B2C	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39362C

Deuteranopia (green-blind)

#534C29

Tritanopia (blue-blind)

#900022

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831b2c;
/* rgb */ color: rgb(131, 27, 44);
/* oklch */ color: oklch(40.4% 0.138 17.4);

Tailwind

colors: {
  custom: {
    50: '#ae6264',
    500: '#831b2c',
    950: '#000000',
  },
}

SCSS

$custom: #831b2c;
$custom-light: #ae6264;
$custom-dark: #000000;

JSON

{
  "hex": "#831b2c",
  "rgb": {
    "r": 131,
    "g": 27,
    "b": 44
  },
  "hsl": {
    "h": 350.192,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.4042,
    "c": 0.13799,
    "h": 17.4
  },
  "luminance": 0.05791
}

Semantic roles & 50–950 ramp

primary

#831B2C

secondary

#43B6A4

accent

#E9CD3F

background

#FBF6F6

surface

#F6EBEB

border

#D0C6C6

text

#120605

muted

#817A7A

Preview Lab

Preview with #831B2C

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

Preview Lab → · Contrast checker → · Palette generator →