#B31B5A#B31B5A

#B31B5A is a mid, vivid pink. Relative luminance 0.111; OKLCH L 50.5% C 0.188 H 3.1°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#B31B5A
RGB	rgb(179, 27, 90)
HSL	hsl(335, 74%, 40%)
HSV	hsv(335, 85%, 70%)
CMYK	cmyk(0%, 84.9%, 49.7%, 29.8%)
CIE-LAB	lab(39.76, 61.09, 3.80)
CIE-LCH	lch(39.76, 61.21, 3.56°)
OKLab	oklab(50.53% 0.1875 0.0103)
OKLCH	oklch(50.53% 0.188 3.1)
XYZ	xyz(20.8297, 11.1087, 10.7183)
Luminance	0.1111 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31B5A #1BB374

analogous

#B31BA6 #B31B5A #B3281B

triadic

#B31B5A #5AB31B #1B5AB3

tetradic

#B31B5A #A6B31B #1BB374 #281BB3

square

#B31B5A #A6B31B #1BB374 #281BB3

split-complementary

#B31B5A #1BB328 #1BA6B3

monochromatic

#490B25 #7E133F #B31B5A #DF2C76 #E76199

Accessibility & contrast

On white

6.52

#B31B5A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B31B5A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31B5A

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31B5A	#FFFFFF	#000000	##FFFFFF
##B31B5A	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454B5B

Deuteranopia (green-blind)

#6D6857

Tritanopia (blue-blind)

#C30039

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b31b5a;
/* rgb */ color: rgb(179, 27, 90);
/* oklch */ color: oklch(50.5% 0.188 3.1);

Tailwind

colors: {
  custom: {
    50: '#d06b88',
    500: '#b31b5a',
    950: '#000000',
  },
}

SCSS

$custom: #b31b5a;
$custom-light: #d06b88;
$custom-dark: #000000;

JSON

{
  "hex": "#b31b5a",
  "rgb": {
    "r": 179,
    "g": 27,
    "b": 90
  },
  "hsl": {
    "h": 335.132,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50528,
    "c": 0.1878,
    "h": 3.1
  },
  "luminance": 0.11106
}

Semantic roles & 50–950 ramp

primary

#B31B5A

secondary

#5ECC9E

accent

#F0A437

background

#FDF7F8

surface

#FBEDEF

border

#D4C8CA

text

#15080B

muted

#837B7C

Preview Lab

Preview with #B31B5A

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

Preview Lab → · Contrast checker → · Palette generator →