#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
RGBrgb(179, 27, 120)
HSLhsl(323, 74%, 40%)
HSVhsv(323, 85%, 70%)
CMYKcmyk(0%, 84.9%, 33%, 29.8%)
CIE-LABlab(40.78, 63.99, -13.58)
CIE-LCHlch(40.78, 65.42, 348.02°)
OKLaboklab(51.6% 0.1963 -0.0355)
OKLCHoklch(51.6% 0.199 349.8)
XYZxyz(22.3738, 11.7264, 18.8509)
Luminance0.1172 (WCAG relative)
Temperaturewarm
Familypink

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
##B31B781.006.283.346.28
#FFFFFF6.281.0021.001.00
#0000003.3421.001.0021.00
##FFFFFF6.281.0021.001.00

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 →

#B31B78 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva