#B31CA5#B31CA5

#B31CA5 is a mid, highly saturated purple. Relative luminance 0.131; OKLCH L 53.9% C 0.226 H 332.7°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B31CA5
RGB	rgb(179, 28, 165)
HSL	hsl(306, 73%, 41%)
HSV	hsv(306, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 7.8%, 29.8%)
CIE-LAB	lab(42.96, 69.58, -37.61)
CIE-LCH	lch(42.96, 79.09, 331.61°)
OKLab	oklab(53.85% 0.2007 -0.1035)
OKLCH	oklch(53.85% 0.226 332.7)
XYZ	xyz(25.7974, 13.1331, 36.7663)
Luminance	0.1313 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31CA5 #1CB32A

analogous

#751CB3 #B31CA5 #B31C59

triadic

#B31CA5 #A5B31C #1CA5B3

tetradic

#B31CA5 #B3751C #1CB32A #1C59B3

square

#B31CA5 #B3751C #1CB32A #1C59B3

split-complementary

#B31CA5 #59B31C #1CB375

monochromatic

#490B43 #7E1474 #B31CA5 #DE2ECE #E763DA

Accessibility & contrast

On white

5.79

#B31CA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B31CA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31CA5

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31CA5	#FFFFFF	#000000	##FFFFFF
##B31CA5	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)

#0C58A8

Deuteranopia (green-blind)

#556DA2

Tritanopia (blue-blind)

#BB3163

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b31ca5;
/* rgb */ color: rgb(179, 28, 165);
/* oklch */ color: oklch(53.9% 0.226 332.7);

Tailwind

colors: {
  custom: {
    50: '#ce6fc0',
    500: '#b31ca5',
    950: '#000000',
  },
}

SCSS

$custom: #b31ca5;
$custom-light: #ce6fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#b31ca5",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 165
  },
  "hsl": {
    "h": 305.563,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.53852,
    "c": 0.22583,
    "h": 332.7
  },
  "luminance": 0.13131
}

Semantic roles & 50–950 ramp

primary

#B31CA5

secondary

#5FCB69

accent

#F04938

background

#FDF7FB

surface

#FAEDF7

border

#D3C8D0

text

#140812

muted

#837B81

Preview Lab

Preview with #B31CA5

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

Preview Lab → · Contrast checker → · Palette generator →