#B63237#B63237

#B63237 is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.0% C 0.168 H 23.3°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B63237
RGB	rgb(182, 50, 55)
HSL	hsl(358, 57%, 45%)
HSV	hsv(358, 73%, 71%)
CMYK	cmyk(0%, 72.5%, 69.8%, 28.6%)
CIE-LAB	lab(42.01, 52.83, 28.80)
CIE-LCH	lch(42.01, 60.17, 28.60°)
OKLab	oklab(52.05% 0.1546 0.0667)
OKLCH	oklch(52.05% 0.168 23.3)
XYZ	xyz(21.1239, 12.5053, 4.9152)
Luminance	0.1250 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63237 #32B6B1

analogous

#B63279 #B63237 #B66F32

triadic

#B63237 #37B632 #3237B6

tetradic

#B63237 #79B632 #32B6B1 #6F32B6

square

#B63237 #79B632 #32B6B1 #6F32B6

split-complementary

#B63237 #32B66F #3279B6

monochromatic

#56181A #862528 #B63237 #D0555A #DD8588

Accessibility & contrast

On white

6.00

#B63237 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B63237 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63237

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63237	#FFFFFF	#000000	##FFFFFF
##B63237	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585136

Deuteranopia (green-blind)

#796D33

Tritanopia (blue-blind)

#C80035

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b63237;
/* rgb */ color: rgb(182, 50, 55);
/* oklch */ color: oklch(52.0% 0.168 23.3);

Tailwind

colors: {
  custom: {
    50: '#d4746e',
    500: '#b63237',
    950: '#000000',
  },
}

SCSS

$custom: #b63237;
$custom-light: #d4746e;
$custom-dark: #000000;

JSON

{
  "hex": "#b63237",
  "rgb": {
    "r": 182,
    "g": 50,
    "b": 55
  },
  "hsl": {
    "h": 357.727,
    "s": 56.897,
    "l": 45.49
  },
  "oklch": {
    "l": 0.5205,
    "c": 0.16841,
    "h": 23.3
  },
  "luminance": 0.12502
}

Semantic roles & 50–950 ramp

primary

#B63237

secondary

#7DC7C4

accent

#E0DA48

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63237

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

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