#B31F55#B31F55

#B31F55 is a mid, vivid pink. Relative luminance 0.112; OKLCH L 50.6% C 0.184 H 5.9°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#B31F55
RGB	rgb(179, 31, 85)
HSL	hsl(338, 70%, 41%)
HSV	hsv(338, 83%, 70%)
CMYK	cmyk(0%, 82.7%, 52.5%, 29.8%)
CIE-LAB	lab(39.95, 59.76, 7.25)
CIE-LCH	lch(39.95, 60.19, 6.91°)
OKLab	oklab(50.62% 0.1827 0.0189)
OKLCH	oklch(50.62% 0.184 5.9)
XYZ	xyz(20.7220, 11.2225, 9.6676)
Luminance	0.1122 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31F55 #1FB37D

analogous

#B31F9F #B31F55 #B3331F

triadic

#B31F55 #55B31F #1F55B3

tetradic

#B31F55 #9FB31F #1FB37D #331FB3

square

#B31F55 #9FB31F #1FB37D #331FB3

split-complementary

#B31F55 #1FB333 #1F9FB3

monochromatic

#4B0D23 #7F163C #B31F55 #DC3371 #E56895

Accessibility & contrast

On white

6.47

#B31F55 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#B31F55 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31F55

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31F55	#FFFFFF	#000000	##FFFFFF
##B31F55	1.00	6.47	3.24	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484C56

Deuteranopia (green-blind)

#6E6851

Tritanopia (blue-blind)

#C30038

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b31f55;
/* rgb */ color: rgb(179, 31, 85);
/* oklch */ color: oklch(50.6% 0.184 5.9);

Tailwind

colors: {
  custom: {
    50: '#d06c84',
    500: '#b31f55',
    950: '#000000',
  },
}

SCSS

$custom: #b31f55;
$custom-light: #d06c84;
$custom-dark: #000000;

JSON

{
  "hex": "#b31f55",
  "rgb": {
    "r": 179,
    "g": 31,
    "b": 85
  },
  "hsl": {
    "h": 338.108,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.50623,
    "c": 0.18365,
    "h": 5.9
  },
  "luminance": 0.1122
}

Semantic roles & 50–950 ramp

primary

#B31F55

secondary

#64CAA5

accent

#EDAC3B

background

#FDF7F8

surface

#FBEDEF

border

#D4C8CA

text

#15080A

muted

#837B7C

Preview Lab

Preview with #B31F55

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

Preview Lab → · Contrast checker → · Palette generator →