#B31C57#B31C57

#B31C57 is a mid, vivid pink. Relative luminance 0.111; OKLCH L 50.5% C 0.186 H 4.6°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#B31C57
RGB	rgb(179, 28, 87)
HSL	hsl(337, 73%, 41%)
HSV	hsv(337, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 51.4%, 29.8%)
CIE-LAB	lab(39.76, 60.63, 5.70)
CIE-LCH	lch(39.76, 60.89, 5.37°)
OKLab	oklab(50.5% 0.1857 0.015)
OKLCH	oklch(50.5% 0.186 4.6)
XYZ	xyz(20.7279, 11.1053, 10.0671)
Luminance	0.1110 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31C57 #1CB378

analogous

#B31CA2 #B31C57 #B32C1C

triadic

#B31C57 #57B31C #1C57B3

tetradic

#B31C57 #A2B31C #1CB378 #2C1CB3

square

#B31C57 #A2B31C #1CB378 #2C1CB3

split-complementary

#B31C57 #1CB32C #1CA2B3

monochromatic

#490B24 #7E143D #B31C57 #DE2E73 #E76396

Accessibility & contrast

On white

6.52

#B31C57 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B31C57 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31C57

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31C57	#FFFFFF	#000000	##FFFFFF
##B31C57	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464B58

Deuteranopia (green-blind)

#6D6853

Tritanopia (blue-blind)

#C30038

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b31c57;
/* rgb */ color: rgb(179, 28, 87);
/* oklch */ color: oklch(50.5% 0.186 4.6);

Tailwind

colors: {
  custom: {
    50: '#d06c86',
    500: '#b31c57',
    950: '#000000',
  },
}

SCSS

$custom: #b31c57;
$custom-light: #d06c86;
$custom-dark: #000000;

JSON

{
  "hex": "#b31c57",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 87
  },
  "hsl": {
    "h": 336.556,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50497,
    "c": 0.18633,
    "h": 4.6
  },
  "luminance": 0.11102
}

Semantic roles & 50–950 ramp

primary

#B31C57

secondary

#5FCBA1

accent

#F0A838

background

#FDF7F8

surface

#FBEDEF

border

#D4C8CA

text

#15080B

muted

#837B7C

Preview Lab

Preview with #B31C57

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

Preview Lab → · Contrast checker → · Palette generator →