#B31C9B#B31C9B

#B31C9B is a mid, highly saturated purple. Relative luminance 0.128; OKLCH L 53.3% C 0.219 H 336.1°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B31C9B
RGB	rgb(179, 28, 155)
HSL	hsl(310, 73%, 41%)
HSV	hsv(310, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 13.4%, 29.8%)
CIE-LAB	lab(42.43, 68.15, -32.44)
CIE-LCH	lch(42.43, 75.48, 334.55°)
OKLab	oklab(53.31% 0.2005 -0.0887)
OKLCH	oklch(53.31% 0.219 336.1)
XYZ	xyz(24.9225, 12.7832, 32.1588)
Luminance	0.1278 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31C9B #1CB334

analogous

#7F1CB3 #B31C9B #B31C50

triadic

#B31C9B #9BB31C #1C9BB3

tetradic

#B31C9B #B37F1C #1CB334 #1C50B3

square

#B31C9B #B37F1C #1CB334 #1C50B3

split-complementary

#B31C9B #50B31C #1CB37F

monochromatic

#490B3F #7E146D #B31C9B #DE2EC2 #E763D2

Accessibility & contrast

On white

5.91

#B31C9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B31C9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31C9B

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31C9B	#FFFFFF	#000000	##FFFFFF
##B31C9B	1.00	5.91	3.56	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F569E

Deuteranopia (green-blind)

#596C98

Tritanopia (blue-blind)

#BD2B5D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b31c9b;
/* rgb */ color: rgb(179, 28, 155);
/* oklch */ color: oklch(53.3% 0.219 336.1);

Tailwind

colors: {
  custom: {
    50: '#ce6eb9',
    500: '#b31c9b',
    950: '#000000',
  },
}

SCSS

$custom: #b31c9b;
$custom-light: #ce6eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#b31c9b",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 155
  },
  "hsl": {
    "h": 309.536,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.53305,
    "c": 0.21918,
    "h": 336.1
  },
  "luminance": 0.12781
}

Semantic roles & 50–950 ramp

primary

#B31C9B

secondary

#5FCB71

accent

#F05538

background

#FDF7FB

surface

#FAEDF6

border

#D3C8D0

text

#140811

muted

#837B80

Preview Lab

Preview with #B31C9B

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

Preview Lab → · Contrast checker → · Palette generator →