#B63C33#B63C33

#B63C33 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.1% C 0.159 H 28.0°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#B63C33
RGB	rgb(182, 60, 51)
HSL	hsl(4, 56%, 46%)
HSV	hsv(4, 72%, 71%)
CMYK	cmyk(0%, 67%, 72%, 28.6%)
CIE-LAB	lab(43.39, 48.70, 32.79)
CIE-LCH	lch(43.39, 58.71, 33.95°)
OKLab	oklab(53.06% 0.1407 0.0747)
OKLCH	oklch(53.06% 0.159 28)
XYZ	xyz(21.5071, 13.4189, 4.5890)
Luminance	0.1342 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63C33 #33ADB6

analogous

#B6336B #B63C33 #B67D33

triadic

#B63C33 #33B63C #3C33B6

tetradic

#B63C33 #6BB633 #33ADB6 #7D33B6

square

#B63C33 #6BB633 #33ADB6 #7D33B6

split-complementary

#B63C33 #33B67D #336BB6

monochromatic

#561C18 #862C26 #B63C33 #D05F56 #DD8C86

Accessibility & contrast

On white

5.70

#B63C33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B63C33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63C33

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63C33	#FFFFFF	#000000	##FFFFFF
##B63C33	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5631

Deuteranopia (green-blind)

#7C702F

Tritanopia (blue-blind)

#C81A3B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63c33;
/* rgb */ color: rgb(182, 60, 51);
/* oklch */ color: oklch(53.1% 0.159 28.0);

Tailwind

colors: {
  custom: {
    50: '#d4786b',
    500: '#b63c33',
    950: '#000000',
  },
}

SCSS

$custom: #b63c33;
$custom-light: #d4786b;
$custom-dark: #000000;

JSON

{
  "hex": "#b63c33",
  "rgb": {
    "r": 182,
    "g": 60,
    "b": 51
  },
  "hsl": {
    "h": 4.122,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.53064,
    "c": 0.15936,
    "h": 28
  },
  "luminance": 0.13416
}

Semantic roles & 50–950 ramp

primary

#B63C33

secondary

#7EC2C7

accent

#D5E048

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B63C33

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

Preview Lab → · Contrast checker → · Palette generator →