#B63D2B#B63D2B

#B63D2B is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.160 H 31.2°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#B63D2B
RGB	rgb(182, 61, 43)
HSL	hsl(8, 62%, 44%)
HSV	hsv(8, 76%, 71%)
CMYK	cmyk(0%, 66.5%, 76.4%, 28.6%)
CIE-LAB	lab(43.45, 47.93, 37.39)
CIE-LCH	lch(43.45, 60.79, 37.96°)
OKLab	oklab(53.08% 0.1367 0.0829)
OKLCH	oklch(53.08% 0.16 31.2)
XYZ	xyz(21.3986, 13.4601, 3.7563)
Luminance	0.1346 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63D2B #2BA4B6

analogous

#B62B5F #B63D2B #B6832B

triadic

#B63D2B #2BB63D #3D2BB6

tetradic

#B63D2B #5FB62B #2BA4B6 #832BB6

square

#B63D2B #5FB62B #2BA4B6 #832BB6

split-complementary

#B63D2B #2BB683 #2B5FB6

monochromatic

#531C14 #842C1F #B63D2B #D45C4A #E0887B

Accessibility & contrast

On white

5.69

#B63D2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B63D2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63D2B

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63D2B	#FFFFFF	#000000	##FFFFFF
##B63D2B	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)

#5F5628

Deuteranopia (green-blind)

#7D7027

Tritanopia (blue-blind)

#C81A3A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63d2b;
/* rgb */ color: rgb(182, 61, 43);
/* oklch */ color: oklch(53.1% 0.160 31.2);

Tailwind

colors: {
  custom: {
    50: '#d47965',
    500: '#b63d2b',
    950: '#000000',
  },
}

SCSS

$custom: #b63d2b;
$custom-light: #d47965;
$custom-dark: #000000;

JSON

{
  "hex": "#b63d2b",
  "rgb": {
    "r": 182,
    "g": 61,
    "b": 43
  },
  "hsl": {
    "h": 7.77,
    "s": 61.778,
    "l": 44.118
  },
  "oklch": {
    "l": 0.53079,
    "c": 0.15987,
    "h": 31.2
  },
  "luminance": 0.13457
}

Semantic roles & 50–950 ramp

primary

#B63D2B

secondary

#75BDC8

accent

#D0E543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B63D2B

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

Preview Lab → · Contrast checker → · Palette generator →