#B63D33#B63D33

#B63D33 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.158 H 28.3°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#B63D33
RGB	rgb(182, 61, 51)
HSL	hsl(5, 56%, 46%)
HSV	hsv(5, 72%, 71%)
CMYK	cmyk(0%, 66.5%, 72%, 28.6%)
CIE-LAB	lab(43.54, 48.28, 32.97)
CIE-LCH	lch(43.54, 58.47, 34.33°)
OKLab	oklab(53.18% 0.1394 0.0751)
OKLCH	oklch(53.18% 0.158 28.3)
XYZ	xyz(21.5600, 13.5247, 4.6066)
Luminance	0.1352 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63D33 #33ACB6

analogous

#B6336A #B63D33 #B67E33

triadic

#B63D33 #33B63D #3D33B6

tetradic

#B63D33 #6AB633 #33ACB6 #7E33B6

square

#B63D33 #6AB633 #33ACB6 #7E33B6

split-complementary

#B63D33 #33B67E #336AB6

monochromatic

#561D18 #862D26 #B63D33 #D06056 #DD8D86

Accessibility & contrast

On white

5.67

#B63D33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#B63D33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63D33

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63D33	#FFFFFF	#000000	##FFFFFF
##B63D33	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5631

Deuteranopia (green-blind)

#7D712F

Tritanopia (blue-blind)

#C81C3C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63d33;
/* rgb */ color: rgb(182, 61, 51);
/* oklch */ color: oklch(53.2% 0.158 28.3);

Tailwind

colors: {
  custom: {
    50: '#d4796b',
    500: '#b63d33',
    950: '#000000',
  },
}

SCSS

$custom: #b63d33;
$custom-light: #d4796b;
$custom-dark: #000000;

JSON

{
  "hex": "#b63d33",
  "rgb": {
    "r": 182,
    "g": 61,
    "b": 51
  },
  "hsl": {
    "h": 4.58,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.53181,
    "c": 0.15838,
    "h": 28.3
  },
  "luminance": 0.13522
}

Semantic roles & 50–950 ramp

primary

#B63D33

secondary

#7EC1C7

accent

#D4E048

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B63D33

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

Preview Lab → · Contrast checker → · Palette generator →