#B31C4F#B31C4F

#B31C4F is a mid, vivid pink. Relative luminance 0.110; OKLCH L 50.3% C 0.185 H 8.3°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#B31C4F
RGB	rgb(179, 28, 79)
HSL	hsl(340, 73%, 41%)
HSV	hsv(340, 84%, 70%)
CMYK	cmyk(0%, 84.4%, 55.9%, 29.8%)
CIE-LAB	lab(39.55, 60.02, 10.50)
CIE-LCH	lch(39.55, 60.93, 9.92°)
OKLab	oklab(50.28% 0.1827 0.0267)
OKLCH	oklch(50.28% 0.185 8.3)
XYZ	xyz(20.4190, 10.9818, 8.4401)
Luminance	0.1098 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31C4F #1CB380

analogous

#B31C9A #B31C4F #B3341C

triadic

#B31C4F #4FB31C #1C4FB3

tetradic

#B31C4F #9AB31C #1CB380 #341CB3

square

#B31C4F #9AB31C #1CB380 #341CB3

split-complementary

#B31C4F #1CB334 #1C9AB3

monochromatic

#490B20 #7E1438 #B31C4F #DE2E69 #E7638F

Accessibility & contrast

On white

6.57

#B31C4F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#B31C4F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31C4F

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31C4F	#FFFFFF	#000000	##FFFFFF
##B31C4F	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484A50

Deuteranopia (green-blind)

#6F684B

Tritanopia (blue-blind)

#C40034

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b31c4f;
/* rgb */ color: rgb(179, 28, 79);
/* oklch */ color: oklch(50.3% 0.185 8.3);

Tailwind

colors: {
  custom: {
    50: '#d16b80',
    500: '#b31c4f',
    950: '#000000',
  },
}

SCSS

$custom: #b31c4f;
$custom-light: #d16b80;
$custom-dark: #000000;

JSON

{
  "hex": "#b31c4f",
  "rgb": {
    "r": 179,
    "g": 28,
    "b": 79
  },
  "hsl": {
    "h": 339.735,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50277,
    "c": 0.18467,
    "h": 8.3
  },
  "luminance": 0.10979
}

Semantic roles & 50–950 ramp

primary

#B31C4F

secondary

#5FCBA7

accent

#F0B238

background

#FDF6F7

surface

#FBECEE

border

#D4C7C9

text

#15080A

muted

#837A7C

Preview Lab

Preview with #B31C4F

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

Preview Lab → · Contrast checker → · Palette generator →