#B31B5B#B31B5B

#B31B5B is a mid, vivid pink. Relative luminance 0.111; OKLCH L 50.6% C 0.188 H 2.7°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#B31B5B
RGB	rgb(179, 27, 91)
HSL	hsl(335, 74%, 40%)
HSV	hsv(335, 85%, 70%)
CMYK	cmyk(0%, 84.9%, 49.2%, 29.8%)
CIE-LAB	lab(39.79, 61.18, 3.20)
CIE-LCH	lch(39.79, 61.26, 3.00°)
OKLab	oklab(50.56% 0.1879 0.0088)
OKLCH	oklch(50.56% 0.188 2.7)
XYZ	xyz(20.8725, 11.1259, 10.9439)
Luminance	0.1112 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31B5B #1BB373

analogous

#B31BA7 #B31B5B #B3271B

triadic

#B31B5B #5BB31B #1B5BB3

tetradic

#B31B5B #A7B31B #1BB373 #271BB3

square

#B31B5B #A7B31B #1BB373 #271BB3

split-complementary

#B31B5B #1BB327 #1BA7B3

monochromatic

#490B25 #7E1340 #B31B5B #DF2C77 #E7619A

Accessibility & contrast

On white

6.51

#B31B5B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B31B5B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31B5B

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31B5B	#FFFFFF	#000000	##FFFFFF
##B31B5B	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)

#454B5C

Deuteranopia (green-blind)

#6C6858

Tritanopia (blue-blind)

#C30039

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b31b5b;
/* rgb */ color: rgb(179, 27, 91);
/* oklch */ color: oklch(50.6% 0.188 2.7);

Tailwind

colors: {
  custom: {
    50: '#d06b89',
    500: '#b31b5b',
    950: '#000000',
  },
}

SCSS

$custom: #b31b5b;
$custom-light: #d06b89;
$custom-dark: #000000;

JSON

{
  "hex": "#b31b5b",
  "rgb": {
    "r": 179,
    "g": 27,
    "b": 91
  },
  "hsl": {
    "h": 334.737,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50559,
    "c": 0.18808,
    "h": 2.7
  },
  "luminance": 0.11123
}

Semantic roles & 50–950 ramp

primary

#B31B5B

secondary

#5ECC9E

accent

#F0A337

background

#FDF7F8

surface

#FBEDEF

border

#D4C8CA

text

#15080B

muted

#837B7C

Preview Lab

Preview with #B31B5B

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

Preview Lab → · Contrast checker → · Palette generator →