#B63A43#B63A43

#B63A43 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.1% C 0.159 H 20.4°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#B63A43
RGB	rgb(182, 58, 67)
HSL	hsl(356, 52%, 47%)
HSV	hsv(356, 68%, 71%)
CMYK	cmyk(0%, 68.1%, 63.2%, 28.6%)
CIE-LAB	lab(43.33, 50.42, 23.17)
CIE-LCH	lch(43.33, 55.49, 24.68°)
OKLab	oklab(53.1% 0.1494 0.0556)
OKLCH	oklch(53.1% 0.159 20.4)
XYZ	xyz(21.8198, 13.3795, 6.7426)
Luminance	0.1338 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63A43 #3AB6AD

analogous

#B63A81 #B63A43 #B66F3A

triadic

#B63A43 #43B63A #3A43B6

tetradic

#B63A43 #81B63A #3AB6AD #6F3AB6

square

#B63A43 #81B63A #3AB6AD #6F3AB6

split-complementary

#B63A43 #3AB66F #3A81B6

monochromatic

#591C21 #882B32 #B63A43 #CD6168 #DB8F95

Accessibility & contrast

On white

5.71

#B63A43 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B63A43 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63A43

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63A43	#FFFFFF	#000000	##FFFFFF
##B63A43	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5642

Deuteranopia (green-blind)

#7A7040

Tritanopia (blue-blind)

#C71B3E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63a43;
/* rgb */ color: rgb(182, 58, 67);
/* oklch */ color: oklch(53.1% 0.159 20.4);

Tailwind

colors: {
  custom: {
    50: '#d37877',
    500: '#b63a43',
    950: '#000000',
  },
}

SCSS

$custom: #b63a43;
$custom-light: #d37877;
$custom-dark: #000000;

JSON

{
  "hex": "#b63a43",
  "rgb": {
    "r": 182,
    "g": 58,
    "b": 67
  },
  "hsl": {
    "h": 355.645,
    "s": 51.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53099,
    "c": 0.15946,
    "h": 20.4
  },
  "luminance": 0.13376
}

Semantic roles & 50–950 ramp

primary

#B63A43

secondary

#86C6C1

accent

#DBD14D

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B63A43

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

Preview Lab → · Contrast checker → · Palette generator →