#B63E31#B63E31

#B63E31 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.3% C 0.158 H 29.4°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#B63E31
RGB	rgb(182, 62, 49)
HSL	hsl(6, 58%, 45%)
HSV	hsv(6, 73%, 71%)
CMYK	cmyk(0%, 65.9%, 73.1%, 28.6%)
CIE-LAB	lab(43.68, 47.76, 34.27)
CIE-LCH	lch(43.68, 58.78, 35.66°)
OKLab	oklab(53.27% 0.1374 0.0776)
OKLCH	oklch(53.27% 0.158 29.4)
XYZ	xyz(21.5707, 13.6152, 4.3973)
Luminance	0.1361 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63E31 #31A9B6

analogous

#B63166 #B63E31 #B68131

triadic

#B63E31 #31B63E #3E31B6

tetradic

#B63E31 #66B631 #31A9B6 #8131B6

square

#B63E31 #66B631 #31A9B6 #8131B6

split-complementary

#B63E31 #31B681 #3166B6

monochromatic

#561D17 #862E24 #B63E31 #D16053 #DE8C84

Accessibility & contrast

On white

5.64

#B63E31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B63E31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63E31

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63E31	#FFFFFF	#000000	##FFFFFF
##B63E31	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F572F

Deuteranopia (green-blind)

#7D712D

Tritanopia (blue-blind)

#C81E3C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63e31;
/* rgb */ color: rgb(182, 62, 49);
/* oklch */ color: oklch(53.3% 0.158 29.4);

Tailwind

colors: {
  custom: {
    50: '#d4796a',
    500: '#b63e31',
    950: '#000000',
  },
}

SCSS

$custom: #b63e31;
$custom-light: #d4796a;
$custom-dark: #000000;

JSON

{
  "hex": "#b63e31",
  "rgb": {
    "r": 182,
    "g": 62,
    "b": 49
  },
  "hsl": {
    "h": 5.865,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.53272,
    "c": 0.15776,
    "h": 29.4
  },
  "luminance": 0.13612
}

Semantic roles & 50–950 ramp

primary

#B63E31

secondary

#7CC0C7

accent

#D2E147

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B63E31

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

Preview Lab → · Contrast checker → · Palette generator →