#B31CA9#B31CA9

#B31CA9 is a mid, highly saturated purple. Relative luminance 0.133; OKLCH L 54.1% C 0.229 H 331.4°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#B31CA9
RGB	rgb(179, 28, 169)
HSL	hsl(304, 73%, 41%)
HSV	hsv(304, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 5.6%, 29.8%)
CIE-LAB	lab(43.18, 70.17, -39.65)
CIE-LCH	lch(43.18, 80.59, 330.53°)
OKLab	oklab(54.08% 0.2007 -0.1094)
OKLCH	oklch(54.08% 0.229 331.4)
XYZ	xyz(26.1671, 13.2810, 38.7138)
Luminance	0.1328 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31CA9 #1CB326

analogous

#721CB3 #B31CA9 #B31C5D

triadic

#B31CA9 #A9B31C #1CA9B3

tetradic

#B31CA9 #B3721C #1CB326 #1C5DB3

square

#B31CA9 #B3721C #1CB326 #1C5DB3

split-complementary

#B31CA9 #5DB31C #1CB372

monochromatic

#490B45 #7E1477 #B31CA9 #DE2ED3 #E763DE

Accessibility & contrast

On white

5.74

#B31CA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B31CA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31CA9

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31CA9	#FFFFFF	#000000	##FFFFFF
##B31CA9	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059AC

Deuteranopia (green-blind)

#526DA6

Tritanopia (blue-blind)

#BB3465

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b31ca9;
/* rgb */ color: rgb(179, 28, 169);
/* oklch */ color: oklch(54.1% 0.229 331.4);

Tailwind

colors: {
  custom: {
    50: '#ce6fc3',
    500: '#b31ca9',
    950: '#000000',
  },
}

SCSS

$custom: #b31ca9;
$custom-light: #ce6fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#b31ca9",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 169
  },
  "hsl": {
    "h": 303.974,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.5408,
    "c": 0.22856,
    "h": 331.4
  },
  "luminance": 0.13279
}

Semantic roles & 50–950 ramp

primary

#B31CA9

secondary

#5FCB67

accent

#F04438

background

#FDF7FC

surface

#FAEDF8

border

#D3C8D1

text

#140912

muted

#837B81

Preview Lab

Preview with #B31CA9

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

Preview Lab → · Contrast checker → · Palette generator →