#B63A42#B63A42

#B63A42 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.1% C 0.160 H 20.9°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#B63A42
RGB	rgb(182, 58, 66)
HSL	hsl(356, 52%, 47%)
HSV	hsv(356, 68%, 71%)
CMYK	cmyk(0%, 68.1%, 63.7%, 28.6%)
CIE-LAB	lab(43.31, 50.36, 23.75)
CIE-LCH	lch(43.31, 55.68, 25.25°)
OKLab	oklab(53.08% 0.149 0.0569)
OKLCH	oklch(53.08% 0.16 20.9)
XYZ	xyz(21.7900, 13.3676, 6.5860)
Luminance	0.1336 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63A42 #3AB6AE

analogous

#B63A80 #B63A42 #B6703A

triadic

#B63A42 #42B63A #3A42B6

tetradic

#B63A42 #80B63A #3AB6AE #703AB6

square

#B63A42 #80B63A #3AB6AE #703AB6

split-complementary

#B63A42 #3AB670 #3A80B6

monochromatic

#591C20 #882B31 #B63A42 #CD6168 #DB8F94

Accessibility & contrast

On white

5.72

#B63A42 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B63A42 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63A42

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63A42	#FFFFFF	#000000	##FFFFFF
##B63A42	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5641

Deuteranopia (green-blind)

#7A703F

Tritanopia (blue-blind)

#C71B3E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63a42;
/* rgb */ color: rgb(182, 58, 66);
/* oklch */ color: oklch(53.1% 0.160 20.9);

Tailwind

colors: {
  custom: {
    50: '#d37876',
    500: '#b63a42',
    950: '#000000',
  },
}

SCSS

$custom: #b63a42;
$custom-light: #d37876;
$custom-dark: #000000;

JSON

{
  "hex": "#b63a42",
  "rgb": {
    "r": 182,
    "g": 58,
    "b": 66
  },
  "hsl": {
    "h": 356.129,
    "s": 51.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.5308,
    "c": 0.15952,
    "h": 20.9
  },
  "luminance": 0.13365
}

Semantic roles & 50–950 ramp

primary

#B63A42

secondary

#86C6C2

accent

#DBD24D

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B63A42

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

Preview Lab → · Contrast checker → · Palette generator →