#B31C4A#B31C4A

#B31C4A is a mid, vivid pink. Relative luminance 0.109; OKLCH L 50.2% C 0.184 H 10.6°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#B31C4A
RGB	rgb(179, 28, 74)
HSL	hsl(342, 73%, 41%)
HSV	hsv(342, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 58.7%, 29.8%)
CIE-LAB	lab(39.43, 59.67, 13.52)
CIE-LCH	lch(39.43, 61.18, 12.77°)
OKLab	oklab(50.15% 0.1808 0.0337)
OKLCH	oklch(50.15% 0.184 10.6)
XYZ	xyz(20.2438, 10.9117, 7.5175)
Luminance	0.1091 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31C4A #1CB385

analogous

#B31C95 #B31C4A #B3391C

triadic

#B31C4A #4AB31C #1C4AB3

tetradic

#B31C4A #95B31C #1CB385 #391CB3

square

#B31C4A #95B31C #1CB385 #391CB3

split-complementary

#B31C4A #1CB339 #1C95B3

monochromatic

#490B1E #7E1434 #B31C4A #DE2E64 #E7638B

Accessibility & contrast

On white

6.60

#B31C4A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#B31C4A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31C4A

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31C4A	#FFFFFF	#000000	##FFFFFF
##B31C4A	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49494B

Deuteranopia (green-blind)

#6F6846

Tritanopia (blue-blind)

#C40031

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b31c4a;
/* rgb */ color: rgb(179, 28, 74);
/* oklch */ color: oklch(50.2% 0.184 10.6);

Tailwind

colors: {
  custom: {
    50: '#d16b7c',
    500: '#b31c4a',
    950: '#000000',
  },
}

SCSS

$custom: #b31c4a;
$custom-light: #d16b7c;
$custom-dark: #000000;

JSON

{
  "hex": "#b31c4a",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 74
  },
  "hsl": {
    "h": 341.722,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50152,
    "c": 0.18393,
    "h": 10.6
  },
  "luminance": 0.10909
}

Semantic roles & 50–950 ramp

primary

#B31C4A

secondary

#5FCBAA

accent

#F0B838

background

#FDF6F7

surface

#FBECEE

border

#D4C7C9

text

#150809

muted

#837A7B

Preview Lab

Preview with #B31C4A

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

Preview Lab → · Contrast checker → · Palette generator →