#B31D41#B31D41

#B31D41 is a mid, vivid red. Relative luminance 0.108; OKLCH L 50.0% C 0.182 H 14.7°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#B31D41
RGB	rgb(179, 29, 65)
HSL	hsl(346, 72%, 41%)
HSV	hsv(346, 84%, 70%)
CMYK	cmyk(0%, 83.8%, 63.7%, 29.8%)
CIE-LAB	lab(39.32, 58.87, 19.10)
CIE-LCH	lch(39.32, 61.89, 17.98°)
OKLab	oklab(50.01% 0.1765 0.0462)
OKLCH	oklch(50.01% 0.182 14.7)
XYZ	xyz(19.9861, 10.8472, 6.0414)
Luminance	0.1084 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31D41 #1DB38F

analogous

#B31D8C #B31D41 #B3441D

triadic

#B31D41 #41B31D #1D41B3

tetradic

#B31D41 #8CB31D #1DB38F #441DB3

square

#B31D41 #8CB31D #1DB38F #441DB3

split-complementary

#B31D41 #1DB344 #1D8CB3

monochromatic

#4A0C1B #7E142E #B31D41 #DD3059 #E66484

Accessibility & contrast

On white

6.63

#B31D41 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#B31D41 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31D41

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31D41	#FFFFFF	#000000	##FFFFFF
##B31D41	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)

#4B4941

Deuteranopia (green-blind)

#71673D

Tritanopia (blue-blind)

#C5002D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b31d41;
/* rgb */ color: rgb(179, 29, 65);
/* oklch */ color: oklch(50.0% 0.182 14.7);

Tailwind

colors: {
  custom: {
    50: '#d26b75',
    500: '#b31d41',
    950: '#000000',
  },
}

SCSS

$custom: #b31d41;
$custom-light: #d26b75;
$custom-dark: #000000;

JSON

{
  "hex": "#b31d41",
  "rgb": {
    "r": 179,
    "g": 29,
    "b": 65
  },
  "hsl": {
    "h": 345.6,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50009,
    "c": 0.18247,
    "h": 14.7
  },
  "luminance": 0.10844
}

Semantic roles & 50–950 ramp

primary

#B31D41

secondary

#61CBB1

accent

#EFC339

background

#FDF6F7

surface

#FBECED

border

#D4C7C8

text

#150808

muted

#837A7B

Preview Lab

Preview with #B31D41

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

Preview Lab → · Contrast checker → · Palette generator →