#B31B58#B31B58

#B31B58 is a mid, vivid pink. Relative luminance 0.111; OKLCH L 50.5% C 0.187 H 4.1°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#B31B58
RGB	rgb(179, 27, 88)
HSL	hsl(336, 74%, 40%)
HSV	hsv(336, 85%, 70%)
CMYK	cmyk(0%, 84.9%, 50.8%, 29.8%)
CIE-LAB	lab(39.71, 60.93, 4.99)
CIE-LCH	lch(39.71, 61.14, 4.68°)
OKLab	oklab(50.47% 0.1868 0.0133)
OKLCH	oklch(50.47% 0.187 4.1)
XYZ	xyz(20.7457, 11.0751, 10.2759)
Luminance	0.1107 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31B58 #1BB376

analogous

#B31BA4 #B31B58 #B32A1B

triadic

#B31B58 #58B31B #1B58B3

tetradic

#B31B58 #A4B31B #1BB376 #2A1BB3

square

#B31B58 #A4B31B #1BB376 #2A1BB3

split-complementary

#B31B58 #1BB32A #1BA4B3

monochromatic

#490B24 #7E133E #B31B58 #DF2C74 #E76197

Accessibility & contrast

On white

6.53

#B31B58 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#B31B58 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31B58

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31B58	#FFFFFF	#000000	##FFFFFF
##B31B58	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)

#454B59

Deuteranopia (green-blind)

#6D6854

Tritanopia (blue-blind)

#C30038

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b31b58;
/* rgb */ color: rgb(179, 27, 88);
/* oklch */ color: oklch(50.5% 0.187 4.1);

Tailwind

colors: {
  custom: {
    50: '#d06b86',
    500: '#b31b58',
    950: '#000000',
  },
}

SCSS

$custom: #b31b58;
$custom-light: #d06b86;
$custom-dark: #000000;

JSON

{
  "hex": "#b31b58",
  "rgb": {
    "r": 179,
    "g": 27,
    "b": 88
  },
  "hsl": {
    "h": 335.921,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50469,
    "c": 0.18728,
    "h": 4.1
  },
  "luminance": 0.11072
}

Semantic roles & 50–950 ramp

primary

#B31B58

secondary

#5ECCA0

accent

#F0A637

background

#FDF6F8

surface

#FBECEF

border

#D4C7CA

text

#15080B

muted

#837A7C

Preview Lab

Preview with #B31B58

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

Preview Lab → · Contrast checker → · Palette generator →