#B31DA4#B31DA4

#B31DA4 is a mid, highly saturated purple. Relative luminance 0.131; OKLCH L 53.8% C 0.224 H 333.0°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B31DA4
RGB	rgb(179, 29, 164)
HSL	hsl(306, 72%, 41%)
HSV	hsv(306, 84%, 70%)
CMYK	cmyk(0%, 83.8%, 8.4%, 29.8%)
CIE-LAB	lab(42.98, 69.22, -36.98)
CIE-LCH	lch(42.98, 78.48, 331.89°)
OKLab	oklab(53.85% 0.2001 -0.1017)
OKLCH	oklch(53.85% 0.224 333)
XYZ	xyz(25.7308, 13.1451, 36.2969)
Luminance	0.1314 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31DA4 #1DB32C

analogous

#771DB3 #B31DA4 #B31D59

triadic

#B31DA4 #A4B31D #1DA4B3

tetradic

#B31DA4 #B3771D #1DB32C #1D59B3

square

#B31DA4 #B3771D #1DB32C #1D59B3

split-complementary

#B31DA4 #59B31D #1DB377

monochromatic

#4A0C43 #7E1474 #B31DA4 #DD30CC #E664D9

Accessibility & contrast

On white

5.79

#B31DA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B31DA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31DA4

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31DA4	#FFFFFF	#000000	##FFFFFF
##B31DA4	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1158A7

Deuteranopia (green-blind)

#556DA1

Tritanopia (blue-blind)

#BB3162

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b31da4;
/* rgb */ color: rgb(179, 29, 164);
/* oklch */ color: oklch(53.8% 0.224 333.0);

Tailwind

colors: {
  custom: {
    50: '#ce6fbf',
    500: '#b31da4',
    950: '#000000',
  },
}

SCSS

$custom: #b31da4;
$custom-light: #ce6fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#b31da4",
  "rgb": {
    "r": 179,
    "g": 29,
    "b": 164
  },
  "hsl": {
    "h": 306,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.53848,
    "c": 0.22446,
    "h": 333
  },
  "luminance": 0.13143
}

Semantic roles & 50–950 ramp

primary

#B31DA4

secondary

#61CB6B

accent

#EF4B39

background

#FDF7FB

surface

#FAEDF7

border

#D3C8D0

text

#140912

muted

#837B81

Preview Lab

Preview with #B31DA4

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

Preview Lab → · Contrast checker → · Palette generator →