#B63B57#B63B57

#B63B57 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.7% C 0.159 H 10.7°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#B63B57
RGB	rgb(182, 59, 87)
HSL	hsl(346, 51%, 47%)
HSV	hsv(346, 68%, 71%)
CMYK	cmyk(0%, 67.6%, 52.2%, 28.6%)
CIE-LAB	lab(43.89, 51.50, 11.60)
CIE-LCH	lch(43.89, 52.79, 12.69°)
OKLab	oklab(53.65% 0.1561 0.0296)
OKLCH	oklch(53.65% 0.159 10.7)
XYZ	xyz(22.5776, 13.7641, 10.4828)
Luminance	0.1376 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B57 #3BB69A

analogous

#B63B95 #B63B57 #B65C3B

triadic

#B63B57 #57B63B #3B57B6

tetradic

#B63B57 #95B63B #3BB69A #5C3BB6

square

#B63B57 #95B63B #3BB69A #5C3BB6

split-complementary

#B63B57 #3BB65C #3B95B6

monochromatic

#5A1D2B #882C41 #B63B57 #CC627A #DB90A1

Accessibility & contrast

On white

5.60

#B63B57 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#B63B57 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B57

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B57	#FFFFFF	#000000	##FFFFFF
##B63B57	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585857

Deuteranopia (green-blind)

#787154

Tritanopia (blue-blind)

#C62546

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b63b57;
/* rgb */ color: rgb(182, 59, 87);
/* oklch */ color: oklch(53.7% 0.159 10.7);

Tailwind

colors: {
  custom: {
    50: '#d17986',
    500: '#b63b57',
    950: '#000000',
  },
}

SCSS

$custom: #b63b57;
$custom-light: #d17986;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b57",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 87
  },
  "hsl": {
    "h": 346.341,
    "s": 51.037,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53653,
    "c": 0.15884,
    "h": 10.7
  },
  "luminance": 0.13761
}

Semantic roles & 50–950 ramp

primary

#B63B57

secondary

#87C6B8

accent

#DBBA4D

background

#FDF7F8

surface

#FBEEEF

border

#D4C9CA

text

#150A0B

muted

#837C7C

Preview Lab

Preview with #B63B57

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

Preview Lab → · Contrast checker → · Palette generator →