#B31B78#B31B78

#B31B78 is a mid, vivid pink. Relative luminance 0.117; OKLCH L 51.6% C 0.199 H 349.8°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#B31B78
RGB	rgb(179, 27, 120)
HSL	hsl(323, 74%, 40%)
HSV	hsv(323, 85%, 70%)
CMYK	cmyk(0%, 84.9%, 33%, 29.8%)
CIE-LAB	lab(40.78, 63.99, -13.58)
CIE-LCH	lch(40.78, 65.42, 348.02°)
OKLab	oklab(51.6% 0.1963 -0.0355)
OKLCH	oklch(51.6% 0.199 349.8)
XYZ	xyz(22.3738, 11.7264, 18.8509)
Luminance	0.1172 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31B78 #1BB356

analogous

#A21BB3 #B31B78 #B31B2C

triadic

#B31B78 #78B31B #1B78B3

tetradic

#B31B78 #B3A21B #1BB356 #1B2CB3

square

#B31B78 #B3A21B #1BB356 #1B2CB3

split-complementary

#B31B78 #2CB31B #1BB3A2

monochromatic

#490B31 #7E1354 #B31B78 #DF2C9A #E761B3

Accessibility & contrast

On white

6.28

#B31B78 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#B31B78 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31B78

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31B78	#FFFFFF	#000000	##FFFFFF
##B31B78	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4F7A

Deuteranopia (green-blind)

#666975

Tritanopia (blue-blind)

#C10849

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b31b78;
/* rgb */ color: rgb(179, 27, 120);
/* oklch */ color: oklch(51.6% 0.199 349.8);

Tailwind

colors: {
  custom: {
    50: '#cf6c9f',
    500: '#b31b78',
    950: '#000000',
  },
}

SCSS

$custom: #b31b78;
$custom-light: #cf6c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#b31b78",
  "rgb": {
    "r": 179,
    "g": 27,
    "b": 120
  },
  "hsl": {
    "h": 323.289,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.51598,
    "c": 0.19949,
    "h": 349.8
  },
  "luminance": 0.11724
}

Semantic roles & 50–950 ramp

primary

#B31B78

secondary

#5ECC89

accent

#F07F37

background

#FDF7F9

surface

#FAEDF2

border

#D3C8CC

text

#15080E

muted

#837B7E

Preview Lab

Preview with #B31B78

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

Preview Lab → · Contrast checker → · Palette generator →