#B63447#B63447

#B63447 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.166 H 16.8°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#B63447
RGB	rgb(182, 52, 71)
HSL	hsl(351, 56%, 46%)
HSV	hsv(351, 71%, 71%)
CMYK	cmyk(0%, 71.4%, 61%, 28.6%)
CIE-LAB	lab(42.55, 53.03, 19.69)
CIE-LCH	lch(42.55, 56.57, 20.37°)
OKLab	oklab(52.54% 0.1585 0.048)
OKLCH	oklch(52.54% 0.166 16.8)
XYZ	xyz(21.6589, 12.8591, 7.3016)
Luminance	0.1286 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63447 #34B6A3

analogous

#B63488 #B63447 #B66234

triadic

#B63447 #47B634 #3447B6

tetradic

#B63447 #88B634 #34B6A3 #6234B6

square

#B63447 #88B634 #34B6A3 #6234B6

split-complementary

#B63447 #34B662 #3488B6

monochromatic

#571922 #862634 #B63447 #CF5869 #DD8894

Accessibility & contrast

On white

5.88

#B63447 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B63447 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63447

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63447	#FFFFFF	#000000	##FFFFFF
##B63447	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575347

Deuteranopia (green-blind)

#786E44

Tritanopia (blue-blind)

#C70F3C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b63447;
/* rgb */ color: rgb(182, 52, 71);
/* oklch */ color: oklch(52.5% 0.166 16.8);

Tailwind

colors: {
  custom: {
    50: '#d3757a',
    500: '#b63447',
    950: '#000000',
  },
}

SCSS

$custom: #b63447;
$custom-light: #d3757a;
$custom-dark: #000000;

JSON

{
  "hex": "#b63447",
  "rgb": {
    "r": 182,
    "g": 52,
    "b": 71
  },
  "hsl": {
    "h": 351.231,
    "s": 55.556,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52542,
    "c": 0.16561,
    "h": 16.8
  },
  "luminance": 0.12856
}

Semantic roles & 50–950 ramp

primary

#B63447

secondary

#7FC7BC

accent

#DFC949

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150909

muted

#837B7B

Preview Lab

Preview with #B63447

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

Preview Lab → · Contrast checker → · Palette generator →