#B31C66#B31C66

#B31C66 is a mid, vivid pink. Relative luminance 0.114; OKLCH L 51.0% C 0.191 H 357.7°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#B31C66
RGB	rgb(179, 28, 102)
HSL	hsl(331, 73%, 41%)
HSV	hsv(331, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 43%, 29.8%)
CIE-LAB	lab(40.21, 61.93, -3.15)
CIE-LCH	lch(40.21, 62.01, 357.08°)
OKLab	oklab(50.97% 0.1908 -0.0075)
OKLCH	oklch(50.97% 0.191 357.7)
XYZ	xyz(21.4056, 11.3764, 13.6365)
Luminance	0.1137 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31C66 #1CB369

analogous

#B31CB1 #B31C66 #B31D1C

triadic

#B31C66 #66B31C #1C66B3

tetradic

#B31C66 #B1B31C #1CB369 #1D1CB3

square

#B31C66 #B1B31C #1CB369 #1D1CB3

split-complementary

#B31C66 #1CB31D #1CB1B3

monochromatic

#490B2A #7E1448 #B31C66 #DE2E84 #E763A3

Accessibility & contrast

On white

6.41

#B31C66 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#B31C66 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31C66

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31C66	#FFFFFF	#000000	##FFFFFF
##B31C66	1.00	6.41	3.27	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#414D68

Deuteranopia (green-blind)

#6A6963

Tritanopia (blue-blind)

#C20040

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b31c66;
/* rgb */ color: rgb(179, 28, 102);
/* oklch */ color: oklch(51.0% 0.191 357.7);

Tailwind

colors: {
  custom: {
    50: '#d06c91',
    500: '#b31c66',
    950: '#000000',
  },
}

SCSS

$custom: #b31c66;
$custom-light: #d06c91;
$custom-dark: #000000;

JSON

{
  "hex": "#b31c66",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 102
  },
  "hsl": {
    "h": 330.596,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50973,
    "c": 0.19093,
    "h": 357.7
  },
  "luminance": 0.11374
}

Semantic roles & 50–950 ramp

primary

#B31C66

secondary

#5FCB96

accent

#F09638

background

#FDF7F8

surface

#FBEDF0

border

#D4C8CB

text

#15080C

muted

#837B7D

Preview Lab

Preview with #B31C66

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

Preview Lab → · Contrast checker → · Palette generator →