#B31B91#B31B91

#B31B91 is a mid, highly saturated pink. Relative luminance 0.124; OKLCH L 52.7% C 0.214 H 339.8°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#B31B91
RGB	rgb(179, 27, 145)
HSL	hsl(313, 74%, 40%)
HSV	hsv(313, 85%, 70%)
CMYK	cmyk(0%, 84.9%, 19%, 29.8%)
CIE-LAB	lab(41.87, 67.01, -27.28)
CIE-LCH	lch(41.87, 72.35, 337.85°)
OKLab	oklab(52.74% 0.2004 -0.0739)
OKLCH	oklch(52.74% 0.214 339.8)
XYZ	xyz(24.0939, 12.4144, 27.9099)
Luminance	0.1241 (WCAG relative)
Temperature	neutral
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31B91 #1BB33D

analogous

#891BB3 #B31B91 #B31B45

triadic

#B31B91 #91B31B #1B91B3

tetradic

#B31B91 #B3891B #1BB33D #1B45B3

square

#B31B91 #B3891B #1BB33D #1B45B3

split-complementary

#B31B91 #45B31B #1BB389

monochromatic

#490B3B #7E1366 #B31B91 #DF2CB7 #E761C9

Accessibility & contrast

On white

6.03

#B31B91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B31B91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31B91

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31B91	#FFFFFF	#000000	##FFFFFF
##B31B91	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295494

Deuteranopia (green-blind)

#5D6B8E

Tritanopia (blue-blind)

#BE2357

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b31b91;
/* rgb */ color: rgb(179, 27, 145);
/* oklch */ color: oklch(52.7% 0.214 339.8);

Tailwind

colors: {
  custom: {
    50: '#ce6db1',
    500: '#b31b91',
    950: '#000000',
  },
}

SCSS

$custom: #b31b91;
$custom-light: #ce6db1;
$custom-dark: #000000;

JSON

{
  "hex": "#b31b91",
  "rgb": {
    "r": 179,
    "g": 27,
    "b": 145
  },
  "hsl": {
    "h": 313.421,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.52738,
    "c": 0.21353,
    "h": 339.8
  },
  "luminance": 0.12412
}

Semantic roles & 50–950 ramp

primary

#B31B91

secondary

#5ECC77

accent

#F06137

background

#FDF7FA

surface

#FAEDF5

border

#D3C8CF

text

#140811

muted

#837B80

Preview Lab

Preview with #B31B91

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

Preview Lab → · Contrast checker → · Palette generator →