#B63B2C#B63B2C

#B63B2C is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.162 H 30.2°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B63B2C
RGB	rgb(182, 59, 44)
HSL	hsl(7, 61%, 44%)
HSV	hsv(7, 76%, 71%)
CMYK	cmyk(0%, 67.6%, 75.8%, 28.6%)
CIE-LAB	lab(43.15, 48.81, 36.51)
CIE-LCH	lch(43.15, 60.95, 36.80°)
OKLab	oklab(52.86% 0.1396 0.0813)
OKLCH	oklch(52.86% 0.162 30.2)
XYZ	xyz(21.3124, 13.2580, 3.8192)
Luminance	0.1326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B2C #2CA7B6

analogous

#B62C62 #B63B2C #B6802C

triadic

#B63B2C #2CB63B #3B2CB6

tetradic

#B63B2C #62B62C #2CA7B6 #802CB6

square

#B63B2C #62B62C #2CA7B6 #802CB6

split-complementary

#B63B2C #2CB680 #2C62B6

monochromatic

#531B14 #852B20 #B63B2C #D45A4C #E0887D

Accessibility & contrast

On white

5.75

#B63B2C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B63B2C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B2C

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B2C	#FFFFFF	#000000	##FFFFFF
##B63B2C	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5529

Deuteranopia (green-blind)

#7D7028

Tritanopia (blue-blind)

#C81538

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63b2c;
/* rgb */ color: rgb(182, 59, 44);
/* oklch */ color: oklch(52.9% 0.162 30.2);

Tailwind

colors: {
  custom: {
    50: '#d47866',
    500: '#b63b2c',
    950: '#000000',
  },
}

SCSS

$custom: #b63b2c;
$custom-light: #d47866;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b2c",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 44
  },
  "hsl": {
    "h": 6.522,
    "s": 61.062,
    "l": 44.314
  },
  "oklch": {
    "l": 0.52858,
    "c": 0.16156,
    "h": 30.2
  },
  "luminance": 0.13255
}

Semantic roles & 50–950 ramp

primary

#B63B2C

secondary

#76BFC8

accent

#D3E444

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B63B2C

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

Preview Lab → · Contrast checker → · Palette generator →