#B31D4F#B31D4F

#B31D4F is a mid, vivid pink. Relative luminance 0.110; OKLCH L 50.3% C 0.184 H 8.4°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#B31D4F
RGB	rgb(179, 29, 79)
HSL	hsl(340, 72%, 41%)
HSV	hsv(340, 84%, 70%)
CMYK	cmyk(0%, 83.8%, 55.9%, 29.8%)
CIE-LAB	lab(39.63, 59.79, 10.61)
CIE-LCH	lch(39.63, 60.72, 10.07°)
OKLab	oklab(50.34% 0.182 0.0269)
OKLCH	oklch(50.34% 0.184 8.4)
XYZ	xyz(20.4431, 11.0300, 8.4482)
Luminance	0.1103 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31D4F #1DB381

analogous

#B31D9A #B31D4F #B3361D

triadic

#B31D4F #4FB31D #1D4FB3

tetradic

#B31D4F #9AB31D #1DB381 #361DB3

square

#B31D4F #9AB31D #1DB381 #361DB3

split-complementary

#B31D4F #1DB336 #1D9AB3

monochromatic

#4A0C21 #7E1438 #B31D4F #DD306A #E66490

Accessibility & contrast

On white

6.55

#B31D4F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#B31D4F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31D4F

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31D4F	#FFFFFF	#000000	##FFFFFF
##B31D4F	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	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: #b31d4f;
/* rgb */ color: rgb(179, 29, 79);
/* oklch */ color: oklch(50.3% 0.184 8.4);

Tailwind

colors: {
  custom: {
    50: '#d16c80',
    500: '#b31d4f',
    950: '#000000',
  },
}

SCSS

$custom: #b31d4f;
$custom-light: #d16c80;
$custom-dark: #000000;

JSON

{
  "hex": "#b31d4f",
  "rgb": {
    "r": 179,
    "g": 29,
    "b": 79
  },
  "hsl": {
    "h": 340,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50337,
    "c": 0.18397,
    "h": 8.4
  },
  "luminance": 0.11027
}

Semantic roles & 50–950 ramp

primary

#B31D4F

secondary

#61CBA8

accent

#EFB239

background

#FDF6F7

surface

#FBECEE

border

#D4C7C9

text

#15080A

muted

#837A7C

Preview Lab

Preview with #B31D4F

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

Preview Lab → · Contrast checker → · Palette generator →