#B83931#B83931

#B83931 is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.0% C 0.165 H 27.7°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#B83931
RGB	rgb(184, 57, 49)
HSL	hsl(4, 58%, 46%)
HSV	hsv(4, 73%, 72%)
CMYK	cmyk(0%, 69%, 73.4%, 27.8%)
CIE-LAB	lab(43.27, 50.51, 33.91)
CIE-LCH	lch(43.27, 60.84, 33.88°)
OKLab	oklab(53.04% 0.1458 0.0767)
OKLCH	oklch(53.04% 0.165 27.7)
XYZ	xyz(21.7871, 13.3416, 4.3331)
Luminance	0.1334 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B83931 #31B0B8

analogous

#B8316C #B83931 #B87D31

triadic

#B83931 #31B839 #3931B8

tetradic

#B83931 #6CB831 #31B0B8 #7D31B8

square

#B83931 #6CB831 #31B0B8 #7D31B8

split-complementary

#B83931 #31B87D #316CB8

monochromatic

#571B17 #882A24 #B83931 #D25C55 #DE8A85

Accessibility & contrast

On white

5.73

#B83931 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B83931 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83931

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B83931	#FFFFFF	#000000	##FFFFFF
##B83931	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D552F

Deuteranopia (green-blind)

#7D702D

Tritanopia (blue-blind)

#CA1038

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b83931;
/* rgb */ color: rgb(184, 57, 49);
/* oklch */ color: oklch(53.0% 0.165 27.7);

Tailwind

colors: {
  custom: {
    50: '#d57769',
    500: '#b83931',
    950: '#000000',
  },
}

SCSS

$custom: #b83931;
$custom-light: #d57769;
$custom-dark: #000000;

JSON

{
  "hex": "#b83931",
  "rgb": {
    "r": 184,
    "g": 57,
    "b": 49
  },
  "hsl": {
    "h": 3.556,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.53037,
    "c": 0.16471,
    "h": 27.7
  },
  "luminance": 0.13338
}

Semantic roles & 50–950 ramp

primary

#B83931

secondary

#7DC4C8

accent

#D8E147

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B83931

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

Preview Lab → · Contrast checker → · Palette generator →