#B31B9E#B31B9E

#B31B9E is a mid, highly saturated purple. Relative luminance 0.128; OKLCH L 53.4% C 0.222 H 335.1°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B31B9E
RGB	rgb(179, 27, 158)
HSL	hsl(308, 74%, 40%)
HSV	hsv(308, 85%, 70%)
CMYK	cmyk(0%, 84.9%, 11.7%, 29.8%)
CIE-LAB	lab(42.52, 68.78, -34.12)
CIE-LCH	lch(42.52, 76.78, 333.62°)
OKLab	oklab(53.42% 0.2012 -0.0935)
OKLCH	oklch(53.42% 0.222 335.1)
XYZ	xyz(25.1543, 12.8386, 33.4944)
Luminance	0.1284 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31B9E #1BB330

analogous

#7C1BB3 #B31B9E #B31B52

triadic

#B31B9E #9EB31B #1B9EB3

tetradic

#B31B9E #B37C1B #1BB330 #1B52B3

square

#B31B9E #B37C1B #1BB330 #1B52B3

split-complementary

#B31B9E #52B31B #1BB37C

monochromatic

#490B40 #7E136F #B31B9E #DF2CC6 #E761D5

Accessibility & contrast

On white

5.89

#B31B9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B31B9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31B9E

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31B9E	#FFFFFF	#000000	##FFFFFF
##B31B9E	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A56A1

Deuteranopia (green-blind)

#586C9B

Tritanopia (blue-blind)

#BC2C5F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b31b9e;
/* rgb */ color: rgb(179, 27, 158);
/* oklch */ color: oklch(53.4% 0.222 335.1);

Tailwind

colors: {
  custom: {
    50: '#ce6ebb',
    500: '#b31b9e',
    950: '#000000',
  },
}

SCSS

$custom: #b31b9e;
$custom-light: #ce6ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#b31b9e",
  "rgb": {
    "r": 179,
    "g": 27,
    "b": 158
  },
  "hsl": {
    "h": 308.289,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.53415,
    "c": 0.22184,
    "h": 335.1
  },
  "luminance": 0.12836
}

Semantic roles & 50–950 ramp

primary

#B31B9E

secondary

#5ECC6D

accent

#F05137

background

#FDF7FB

surface

#FAEDF6

border

#D3C8D0

text

#140812

muted

#837B81

Preview Lab

Preview with #B31B9E

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

Preview Lab → · Contrast checker → · Palette generator →