#B83639#B83639

#B83639 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.8% C 0.166 H 23.7°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B83639
RGB	rgb(184, 54, 57)
HSL	hsl(359, 55%, 47%)
HSV	hsv(359, 71%, 72%)
CMYK	cmyk(0%, 70.7%, 69%, 27.8%)
CIE-LAB	lab(42.95, 52.08, 28.83)
CIE-LCH	lch(42.95, 59.52, 28.97°)
OKLab	oklab(52.83% 0.1524 0.067)
OKLCH	oklch(52.83% 0.166 23.7)
XYZ	xyz(21.8272, 13.1273, 5.2546)
Luminance	0.1312 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B83639 #36B8B5

analogous

#B8367A #B83639 #B87436

triadic

#B83639 #39B836 #3639B8

tetradic

#B83639 #7AB836 #36B8B5 #7436B8

square

#B83639 #7AB836 #36B8B5 #7436B8

split-complementary

#B83639 #36B874 #367AB8

monochromatic

#591A1C #89282A #B83639 #CF5C5F #DD8B8D

Accessibility & contrast

On white

5.79

#B83639 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B83639 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83639

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B83639	#FFFFFF	#000000	##FFFFFF
##B83639	1.00	5.79	3.62	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5438

Deuteranopia (green-blind)

#7B7035

Tritanopia (blue-blind)

#CA0938

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b83639;
/* rgb */ color: rgb(184, 54, 57);
/* oklch */ color: oklch(52.8% 0.166 23.7);

Tailwind

colors: {
  custom: {
    50: '#d5766f',
    500: '#b83639',
    950: '#000000',
  },
}

SCSS

$custom: #b83639;
$custom-light: #d5766f;
$custom-dark: #000000;

JSON

{
  "hex": "#b83639",
  "rgb": {
    "r": 184,
    "g": 54,
    "b": 57
  },
  "hsl": {
    "h": 358.615,
    "s": 54.622,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52834,
    "c": 0.16648,
    "h": 23.7
  },
  "luminance": 0.13124
}

Semantic roles & 50–950 ramp

primary

#B83639

secondary

#82C7C6

accent

#DEDB4A

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B83639

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

Preview Lab → · Contrast checker → · Palette generator →