#B8373F#B8373F

#B8373F is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.0% C 0.165 H 21.5°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#B8373F
RGB	rgb(184, 55, 63)
HSL	hsl(356, 54%, 47%)
HSV	hsv(356, 70%, 72%)
CMYK	cmyk(0%, 70.1%, 65.8%, 27.8%)
CIE-LAB	lab(43.19, 52.02, 25.50)
CIE-LCH	lch(43.19, 57.94, 26.11°)
OKLab	oklab(53.04% 0.1535 0.0604)
OKLCH	oklch(53.04% 0.165 21.5)
XYZ	xyz(22.0329, 13.2848, 6.1057)
Luminance	0.1328 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B8373F #37B8B0

analogous

#B83780 #B8373F #B87037

triadic

#B8373F #3FB837 #373FB8

tetradic

#B8373F #80B837 #37B8B0 #7037B8

square

#B8373F #80B837 #37B8B0 #7037B8

split-complementary

#B8373F #37B870 #3780B8

monochromatic

#5A1B1F #89292F #B8373F #CF5D65 #DD8D92

Accessibility & contrast

On white

5.74

#B8373F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B8373F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B8373F

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B8373F	#FFFFFF	#000000	##FFFFFF
##B8373F	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A553E

Deuteranopia (green-blind)

#7B703B

Tritanopia (blue-blind)

#CA103B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b8373f;
/* rgb */ color: rgb(184, 55, 63);
/* oklch */ color: oklch(53.0% 0.165 21.5);

Tailwind

colors: {
  custom: {
    50: '#d57674',
    500: '#b8373f',
    950: '#000000',
  },
}

SCSS

$custom: #b8373f;
$custom-light: #d57674;
$custom-dark: #000000;

JSON

{
  "hex": "#b8373f",
  "rgb": {
    "r": 184,
    "g": 55,
    "b": 63
  },
  "hsl": {
    "h": 356.279,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.53039,
    "c": 0.16494,
    "h": 21.5
  },
  "luminance": 0.13282
}

Semantic roles & 50–950 ramp

primary

#B8373F

secondary

#84C7C3

accent

#DDD44A

background

#FEF7F7

surface

#FCEEED

border

#D5C9C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #B8373F

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

Preview Lab → · Contrast checker → · Palette generator →