#B31B59#B31B59

#B31B59 is a mid, vivid pink. Relative luminance 0.111; OKLCH L 50.5% C 0.188 H 3.6°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#B31B59
RGB	rgb(179, 27, 89)
HSL	hsl(336, 74%, 40%)
HSV	hsv(336, 85%, 70%)
CMYK	cmyk(0%, 84.9%, 50.3%, 29.8%)
CIE-LAB	lab(39.73, 61.01, 4.39)
CIE-LCH	lch(39.73, 61.17, 4.12°)
OKLab	oklab(50.5% 0.1872 0.0118)
OKLCH	oklch(50.5% 0.188 3.6)
XYZ	xyz(20.7874, 11.0918, 10.4956)
Luminance	0.1109 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31B59 #1BB375

analogous

#B31BA5 #B31B59 #B3291B

triadic

#B31B59 #59B31B #1B59B3

tetradic

#B31B59 #A5B31B #1BB375 #291BB3

square

#B31B59 #A5B31B #1BB375 #291BB3

split-complementary

#B31B59 #1BB329 #1BA5B3

monochromatic

#490B24 #7E133F #B31B59 #DF2C75 #E76198

Accessibility & contrast

On white

6.53

#B31B59 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B31B59 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31B59

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31B59	#FFFFFF	#000000	##FFFFFF
##B31B59	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454B5A

Deuteranopia (green-blind)

#6D6855

Tritanopia (blue-blind)

#C30038

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b31b59;
/* rgb */ color: rgb(179, 27, 89);
/* oklch */ color: oklch(50.5% 0.188 3.6);

Tailwind

colors: {
  custom: {
    50: '#d06b87',
    500: '#b31b59',
    950: '#000000',
  },
}

SCSS

$custom: #b31b59;
$custom-light: #d06b87;
$custom-dark: #000000;

JSON

{
  "hex": "#b31b59",
  "rgb": {
    "r": 179,
    "g": 27,
    "b": 89
  },
  "hsl": {
    "h": 335.526,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50498,
    "c": 0.18753,
    "h": 3.6
  },
  "luminance": 0.11089
}

Semantic roles & 50–950 ramp

primary

#B31B59

secondary

#5ECC9F

accent

#F0A537

background

#FDF6F8

surface

#FBECEF

border

#D4C7CA

text

#15080B

muted

#837A7C

Preview Lab

Preview with #B31B59

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

Preview Lab → · Contrast checker → · Palette generator →