#B31C55#B31C55

#B31C55 is a mid, vivid pink. Relative luminance 0.111; OKLCH L 50.4% C 0.186 H 5.5°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#B31C55
RGB	rgb(179, 28, 85)
HSL	hsl(337, 73%, 41%)
HSV	hsv(337, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 52.5%, 29.8%)
CIE-LAB	lab(39.70, 60.47, 6.89)
CIE-LCH	lch(39.70, 60.86, 6.50°)
OKLab	oklab(50.44% 0.185 0.018)
OKLCH	oklch(50.44% 0.186 5.5)
XYZ	xyz(20.6473, 11.0731, 9.6427)
Luminance	0.1107 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31C55 #1CB37A

analogous

#B31CA0 #B31C55 #B32E1C

triadic

#B31C55 #55B31C #1C55B3

tetradic

#B31C55 #A0B31C #1CB37A #2E1CB3

square

#B31C55 #A0B31C #1CB37A #2E1CB3

split-complementary

#B31C55 #1CB32E #1CA0B3

monochromatic

#490B23 #7E143C #B31C55 #DE2E70 #E76395

Accessibility & contrast

On white

6.53

#B31C55 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#B31C55 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31C55

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31C55	#FFFFFF	#000000	##FFFFFF
##B31C55	1.00	6.53	3.21	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474B56

Deuteranopia (green-blind)

#6E6851

Tritanopia (blue-blind)

#C30037

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b31c55;
/* rgb */ color: rgb(179, 28, 85);
/* oklch */ color: oklch(50.4% 0.186 5.5);

Tailwind

colors: {
  custom: {
    50: '#d06b84',
    500: '#b31c55',
    950: '#000000',
  },
}

SCSS

$custom: #b31c55;
$custom-light: #d06b84;
$custom-dark: #000000;

JSON

{
  "hex": "#b31c55",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 85
  },
  "hsl": {
    "h": 337.351,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.5044,
    "c": 0.18586,
    "h": 5.5
  },
  "luminance": 0.1107
}

Semantic roles & 50–950 ramp

primary

#B31C55

secondary

#5FCBA3

accent

#F0AA38

background

#FDF7F8

surface

#FBEDEF

border

#D4C8CA

text

#15080A

muted

#837B7C

Preview Lab

Preview with #B31C55

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

Preview Lab → · Contrast checker → · Palette generator →