#B63B42#B63B42

#B63B42 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.158 H 21.2°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#B63B42
RGB	rgb(182, 59, 66)
HSL	hsl(357, 51%, 47%)
HSV	hsv(357, 68%, 71%)
CMYK	cmyk(0%, 67.6%, 63.7%, 28.6%)
CIE-LAB	lab(43.46, 49.95, 23.94)
CIE-LCH	lch(43.46, 55.39, 25.61°)
OKLab	oklab(53.19% 0.1477 0.0573)
OKLCH	oklch(53.19% 0.158 21.2)
XYZ	xyz(21.8409, 13.4694, 6.6030)
Luminance	0.1347 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B42 #3BB6AF

analogous

#B63B80 #B63B42 #B6713B

triadic

#B63B42 #42B63B #3B42B6

tetradic

#B63B42 #80B63B #3BB6AF #713BB6

square

#B63B42 #80B63B #3BB6AF #713BB6

split-complementary

#B63B42 #3BB671 #3B80B6

monochromatic

#5A1D20 #882C31 #B63B42 #CC6268 #DB9095

Accessibility & contrast

On white

5.69

#B63B42 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B63B42 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B42

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B42	#FFFFFF	#000000	##FFFFFF
##B63B42	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5641

Deuteranopia (green-blind)

#7B703F

Tritanopia (blue-blind)

#C71D3F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63b42;
/* rgb */ color: rgb(182, 59, 66);
/* oklch */ color: oklch(53.2% 0.158 21.2);

Tailwind

colors: {
  custom: {
    50: '#d37876',
    500: '#b63b42',
    950: '#000000',
  },
}

SCSS

$custom: #b63b42;
$custom-light: #d37876;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b42",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 66
  },
  "hsl": {
    "h": 356.585,
    "s": 51.037,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53193,
    "c": 0.15846,
    "h": 21.2
  },
  "luminance": 0.13466
}

Semantic roles & 50–950 ramp

primary

#B63B42

secondary

#87C6C2

accent

#DBD24D

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B63B42

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

Preview Lab → · Contrast checker → · Palette generator →