#B31D55#B31D55

#B31D55 is a mid, vivid pink. Relative luminance 0.111; OKLCH L 50.5% C 0.185 H 5.7°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#B31D55
RGB	rgb(179, 29, 85)
HSL	hsl(338, 72%, 41%)
HSV	hsv(338, 84%, 70%)
CMYK	cmyk(0%, 83.8%, 52.5%, 29.8%)
CIE-LAB	lab(39.78, 60.24, 7.01)
CIE-LCH	lch(39.78, 60.64, 6.63°)
OKLab	oklab(50.5% 0.1842 0.0183)
OKLCH	oklch(50.5% 0.185 5.7)
XYZ	xyz(20.6714, 11.1213, 9.6507)
Luminance	0.1112 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31D55 #1DB37B

analogous

#B31DA0 #B31D55 #B3301D

triadic

#B31D55 #55B31D #1D55B3

tetradic

#B31D55 #A0B31D #1DB37B #301DB3

square

#B31D55 #A0B31D #1DB37B #301DB3

split-complementary

#B31D55 #1DB330 #1DA0B3

monochromatic

#4A0C23 #7E143C #B31D55 #DD3071 #E66495

Accessibility & contrast

On white

6.51

#B31D55 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B31D55 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31D55

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31D55	#FFFFFF	#000000	##FFFFFF
##B31D55	1.00	6.51	3.22	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.51	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: #b31d55;
/* rgb */ color: rgb(179, 29, 85);
/* oklch */ color: oklch(50.5% 0.185 5.7);

Tailwind

colors: {
  custom: {
    50: '#d06c84',
    500: '#b31d55',
    950: '#000000',
  },
}

SCSS

$custom: #b31d55;
$custom-light: #d06c84;
$custom-dark: #000000;

JSON

{
  "hex": "#b31d55",
  "rgb": {
    "r": 179,
    "g": 29,
    "b": 85
  },
  "hsl": {
    "h": 337.6,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50499,
    "c": 0.18514,
    "h": 5.7
  },
  "luminance": 0.11118
}

Semantic roles & 50–950 ramp

primary

#B31D55

secondary

#61CBA3

accent

#EFAB39

background

#FDF7F8

surface

#FBEDEF

border

#D4C8CA

text

#15080A

muted

#837B7C

Preview Lab

Preview with #B31D55

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

Preview Lab → · Contrast checker → · Palette generator →