#B31C4B#B31C4B

#B31C4B is a mid, vivid pink. Relative luminance 0.109; OKLCH L 50.2% C 0.184 H 10.1°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#B31C4B
RGB	rgb(179, 28, 75)
HSL	hsl(341, 73%, 41%)
HSV	hsv(341, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 58.1%, 29.8%)
CIE-LAB	lab(39.45, 59.74, 12.92)
CIE-LCH	lch(39.45, 61.12, 12.20°)
OKLab	oklab(50.18% 0.1812 0.0323)
OKLCH	oklch(50.18% 0.184 10.1)
XYZ	xyz(20.2777, 10.9253, 7.6963)
Luminance	0.1092 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31C4B #1CB384

analogous

#B31C96 #B31C4B #B3391C

triadic

#B31C4B #4BB31C #1C4BB3

tetradic

#B31C4B #96B31C #1CB384 #391CB3

square

#B31C4B #96B31C #1CB384 #391CB3

split-complementary

#B31C4B #1CB339 #1C96B3

monochromatic

#490B1F #7E1435 #B31C4B #DE2E65 #E7638C

Accessibility & contrast

On white

6.59

#B31C4B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#B31C4B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31C4B

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31C4B	#FFFFFF	#000000	##FFFFFF
##B31C4B	1.00	6.59	3.18	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494A4C

Deuteranopia (green-blind)

#6F6847

Tritanopia (blue-blind)

#C40032

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b31c4b;
/* rgb */ color: rgb(179, 28, 75);
/* oklch */ color: oklch(50.2% 0.184 10.1);

Tailwind

colors: {
  custom: {
    50: '#d16b7c',
    500: '#b31c4b',
    950: '#000000',
  },
}

SCSS

$custom: #b31c4b;
$custom-light: #d16b7c;
$custom-dark: #000000;

JSON

{
  "hex": "#b31c4b",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 75
  },
  "hsl": {
    "h": 341.325,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50176,
    "c": 0.18406,
    "h": 10.1
  },
  "luminance": 0.10922
}

Semantic roles & 50–950 ramp

primary

#B31C4B

secondary

#5FCBAA

accent

#F0B738

background

#FDF6F7

surface

#FBECEE

border

#D4C7C9

text

#150809

muted

#837A7B

Preview Lab

Preview with #B31C4B

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

Preview Lab → · Contrast checker → · Palette generator →