#B31E20#B31E20

#B31E20 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.6% C 0.183 H 26.7°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#B31E20
RGB	rgb(179, 30, 32)
HSL	hsl(359, 71%, 41%)
HSV	hsv(359, 83%, 70%)
CMYK	cmyk(0%, 83.2%, 82.1%, 29.8%)
CIE-LAB	lab(38.93, 57.20, 38.64)
CIE-LCH	lch(38.93, 69.03, 34.04°)
OKLab	oklab(49.57% 0.1639 0.0824)
OKLCH	oklch(49.57% 0.183 26.7)
XYZ	xyz(19.3178, 10.6197, 2.3989)
Luminance	0.1062 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31E20 #1EB3B1

analogous

#B31E6A #B31E20 #B3661E

triadic

#B31E20 #20B31E #1E20B3

tetradic

#B31E20 #6AB31E #1EB3B1 #661EB3

square

#B31E20 #6AB31E #1EB3B1 #661EB3

split-complementary

#B31E20 #1EB366 #1E6AB3

monochromatic

#4A0C0D #7F1517 #B31E20 #DD3234 #E56668

Accessibility & contrast

On white

6.72

#B31E20 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#B31E20 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31E20

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31E20	#FFFFFF	#000000	##FFFFFF
##B31E20	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50471E

Deuteranopia (green-blind)

#746718

Tritanopia (blue-blind)

#C60021

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b31e20;
/* rgb */ color: rgb(179, 30, 32);
/* oklch */ color: oklch(49.6% 0.183 26.7);

Tailwind

colors: {
  custom: {
    50: '#d46b5d',
    500: '#b31e20',
    950: '#000000',
  },
}

SCSS

$custom: #b31e20;
$custom-light: #d46b5d;
$custom-dark: #000000;

JSON

{
  "hex": "#b31e20",
  "rgb": {
    "r": 179,
    "g": 30,
    "b": 32
  },
  "hsl": {
    "h": 359.195,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.49569,
    "c": 0.18343,
    "h": 26.7
  },
  "luminance": 0.10617
}

Semantic roles & 50–950 ramp

primary

#B31E20

secondary

#62CBC9

accent

#EEEC3A

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160704

muted

#847A79

Preview Lab

Preview with #B31E20

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

Preview Lab → · Contrast checker → · Palette generator →