#B31C45#B31C45

#B31C45 is a mid, vivid pink. Relative luminance 0.108; OKLCH L 50.0% C 0.183 H 12.8°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#B31C45
RGB	rgb(179, 28, 69)
HSL	hsl(344, 73%, 41%)
HSV	hsv(344, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 61.5%, 29.8%)
CIE-LAB	lab(39.32, 59.35, 16.56)
CIE-LCH	lch(39.32, 61.61, 15.59°)
OKLab	oklab(50.04% 0.1789 0.0406)
OKLCH	oklch(50.04% 0.183 12.8)
XYZ	xyz(20.0820, 10.8470, 6.6653)
Luminance	0.1084 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31C45 #1CB38A

analogous

#B31C90 #B31C45 #B33F1C

triadic

#B31C45 #45B31C #1C45B3

tetradic

#B31C45 #90B31C #1CB38A #3F1CB3

square

#B31C45 #90B31C #1CB38A #3F1CB3

split-complementary

#B31C45 #1CB33F #1C90B3

monochromatic

#490B1C #7E1431 #B31C45 #DE2E5E #E76387

Accessibility & contrast

On white

6.63

#B31C45 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#B31C45 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31C45

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31C45	#FFFFFF	#000000	##FFFFFF
##B31C45	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4945

Deuteranopia (green-blind)

#706741

Tritanopia (blue-blind)

#C4002F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b31c45;
/* rgb */ color: rgb(179, 28, 69);
/* oklch */ color: oklch(50.0% 0.183 12.8);

Tailwind

colors: {
  custom: {
    50: '#d16b78',
    500: '#b31c45',
    950: '#000000',
  },
}

SCSS

$custom: #b31c45;
$custom-light: #d16b78;
$custom-dark: #000000;

JSON

{
  "hex": "#b31c45",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 69
  },
  "hsl": {
    "h": 343.709,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50035,
    "c": 0.1834,
    "h": 12.8
  },
  "luminance": 0.10844
}

Semantic roles & 50–950 ramp

primary

#B31C45

secondary

#5FCBAE

accent

#F0BE38

background

#FDF6F7

surface

#FBECED

border

#D4C7C8

text

#150808

muted

#837A7B

Preview Lab

Preview with #B31C45

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

Preview Lab → · Contrast checker → · Palette generator →