#B63B44#B63B44

#B63B44 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.158 H 20.3°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#B63B44
RGB	rgb(182, 59, 68)
HSL	hsl(356, 51%, 47%)
HSV	hsv(356, 68%, 71%)
CMYK	cmyk(0%, 67.6%, 62.6%, 28.6%)
CIE-LAB	lab(43.50, 50.08, 22.77)
CIE-LCH	lch(43.50, 55.01, 24.45°)
OKLab	oklab(53.23% 0.1485 0.0548)
OKLCH	oklch(53.23% 0.158 20.3)
XYZ	xyz(21.9009, 13.4934, 6.9190)
Luminance	0.1349 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B44 #3BB6AD

analogous

#B63B81 #B63B44 #B6703B

triadic

#B63B44 #44B63B #3B44B6

tetradic

#B63B44 #81B63B #3BB6AD #703BB6

square

#B63B44 #81B63B #3BB6AD #703BB6

split-complementary

#B63B44 #3BB670 #3B81B6

monochromatic

#5A1D21 #882C33 #B63B44 #CC626A #DB9096

Accessibility & contrast

On white

5.68

#B63B44 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#B63B44 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B44

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B44	#FFFFFF	#000000	##FFFFFF
##B63B44	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5643

Deuteranopia (green-blind)

#7A7041

Tritanopia (blue-blind)

#C71D3F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63b44;
/* rgb */ color: rgb(182, 59, 68);
/* oklch */ color: oklch(53.2% 0.158 20.3);

Tailwind

colors: {
  custom: {
    50: '#d37877',
    500: '#b63b44',
    950: '#000000',
  },
}

SCSS

$custom: #b63b44;
$custom-light: #d37877;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b44",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 68
  },
  "hsl": {
    "h": 355.61,
    "s": 51.037,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5323,
    "c": 0.15832,
    "h": 20.3
  },
  "luminance": 0.1349
}

Semantic roles & 50–950 ramp

primary

#B63B44

secondary

#87C6C1

accent

#DBD04D

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B63B44

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

Preview Lab → · Contrast checker → · Palette generator →