#B63F36#B63F36

#B63F36 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.5% C 0.156 H 27.8°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#B63F36
RGB	rgb(182, 63, 54)
HSL	hsl(4, 54%, 46%)
HSV	hsv(4, 70%, 71%)
CMYK	cmyk(0%, 65.4%, 70.3%, 28.6%)
CIE-LAB	lab(43.90, 47.58, 31.64)
CIE-LCH	lch(43.90, 57.14, 33.63°)
OKLab	oklab(53.46% 0.1378 0.0728)
OKLCH	oklch(53.46% 0.156 27.8)
XYZ	xyz(21.7371, 13.7695, 5.0025)
Luminance	0.1377 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63F36 #36ADB6

analogous

#B6366D #B63F36 #B67F36

triadic

#B63F36 #36B63F #3F36B6

tetradic

#B63F36 #6DB636 #36ADB6 #7F36B6

square

#B63F36 #6DB636 #36ADB6 #7F36B6

split-complementary

#B63F36 #36B67F #366DB6

monochromatic

#581E1A #872F28 #B63F36 #CE635B #DC908A

Accessibility & contrast

On white

5.60

#B63F36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#B63F36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63F36

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63F36	#FFFFFF	#000000	##FFFFFF
##B63F36	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605734

Deuteranopia (green-blind)

#7D7132

Tritanopia (blue-blind)

#C8213E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b63f36;
/* rgb */ color: rgb(182, 63, 54);
/* oklch */ color: oklch(53.5% 0.156 27.8);

Tailwind

colors: {
  custom: {
    50: '#d37a6d',
    500: '#b63f36',
    950: '#000000',
  },
}

SCSS

$custom: #b63f36;
$custom-light: #d37a6d;
$custom-dark: #000000;

JSON

{
  "hex": "#b63f36",
  "rgb": {
    "r": 182,
    "g": 63,
    "b": 54
  },
  "hsl": {
    "h": 4.219,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53461,
    "c": 0.15586,
    "h": 27.8
  },
  "luminance": 0.13766
}

Semantic roles & 50–950 ramp

primary

#B63F36

secondary

#81C2C6

accent

#D3DE4A

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B63F36

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

Preview Lab → · Contrast checker → · Palette generator →