#B31F57#B31F57

#B31F57 is a mid, vivid pink. Relative luminance 0.113; OKLCH L 50.7% C 0.184 H 5.0°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#B31F57
RGB	rgb(179, 31, 87)
HSL	hsl(337, 70%, 41%)
HSV	hsv(337, 83%, 70%)
CMYK	cmyk(0%, 82.7%, 51.4%, 29.8%)
CIE-LAB	lab(40.01, 59.91, 6.05)
CIE-LCH	lch(40.01, 60.22, 5.77°)
OKLab	oklab(50.68% 0.1834 0.0159)
OKLCH	oklch(50.68% 0.184 5)
XYZ	xyz(20.8026, 11.2548, 10.0920)
Luminance	0.1125 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31F57 #1FB37B

analogous

#B31FA1 #B31F57 #B3311F

triadic

#B31F57 #57B31F #1F57B3

tetradic

#B31F57 #A1B31F #1FB37B #311FB3

square

#B31F57 #A1B31F #1FB37B #311FB3

split-complementary

#B31F57 #1FB331 #1FA1B3

monochromatic

#4B0D24 #7F163E #B31F57 #DC3373 #E56897

Accessibility & contrast

On white

6.46

#B31F57 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#B31F57 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31F57

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31F57	#FFFFFF	#000000	##FFFFFF
##B31F57	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474C58

Deuteranopia (green-blind)

#6E6954

Tritanopia (blue-blind)

#C30039

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b31f57;
/* rgb */ color: rgb(179, 31, 87);
/* oklch */ color: oklch(50.7% 0.184 5.0);

Tailwind

colors: {
  custom: {
    50: '#d06c86',
    500: '#b31f57',
    950: '#000000',
  },
}

SCSS

$custom: #b31f57;
$custom-light: #d06c86;
$custom-dark: #000000;

JSON

{
  "hex": "#b31f57",
  "rgb": {
    "r": 179,
    "g": 31,
    "b": 87
  },
  "hsl": {
    "h": 337.297,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.50679,
    "c": 0.1841,
    "h": 5
  },
  "luminance": 0.11252
}

Semantic roles & 50–950 ramp

primary

#B31F57

secondary

#64CAA3

accent

#EDAA3B

background

#FDF7F8

surface

#FBEDEF

border

#D4C8CA

text

#15080B

muted

#837B7C

Preview Lab

Preview with #B31F57

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

Preview Lab → · Contrast checker → · Palette generator →