#B63B59#B63B59

#B63B59 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.7% C 0.159 H 9.7°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#B63B59
RGB	rgb(182, 59, 89)
HSL	hsl(345, 51%, 47%)
HSV	hsv(345, 68%, 71%)
CMYK	cmyk(0%, 67.6%, 51.1%, 28.6%)
CIE-LAB	lab(43.94, 51.67, 10.43)
CIE-LCH	lch(43.94, 52.71, 11.41°)
OKLab	oklab(53.71% 0.1569 0.0267)
OKLCH	oklch(53.71% 0.159 9.7)
XYZ	xyz(22.6604, 13.7972, 10.9191)
Luminance	0.1379 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B59 #3BB698

analogous

#B63B96 #B63B59 #B65B3B

triadic

#B63B59 #59B63B #3B59B6

tetradic

#B63B59 #96B63B #3BB698 #5B3BB6

square

#B63B59 #96B63B #3BB698 #5B3BB6

split-complementary

#B63B59 #3BB65B #3B96B6

monochromatic

#5A1D2C #882C42 #B63B59 #CC627C #DB90A3

Accessibility & contrast

On white

5.59

#B63B59 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#B63B59 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B59

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B59	#FFFFFF	#000000	##FFFFFF
##B63B59	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58585A

Deuteranopia (green-blind)

#787156

Tritanopia (blue-blind)

#C62547

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b63b59;
/* rgb */ color: rgb(182, 59, 89);
/* oklch */ color: oklch(53.7% 0.159 9.7);

Tailwind

colors: {
  custom: {
    50: '#d17987',
    500: '#b63b59',
    950: '#000000',
  },
}

SCSS

$custom: #b63b59;
$custom-light: #d17987;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b59",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 89
  },
  "hsl": {
    "h": 345.366,
    "s": 51.037,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53705,
    "c": 0.15911,
    "h": 9.7
  },
  "luminance": 0.13794
}

Semantic roles & 50–950 ramp

primary

#B63B59

secondary

#87C6B7

accent

#DBB84D

background

#FDF7F8

surface

#FBEEEF

border

#D4C9CA

text

#150A0B

muted

#837C7C

Preview Lab

Preview with #B63B59

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

Preview Lab → · Contrast checker → · Palette generator →