#B63B4A#B63B4A

#B63B4A is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.4% C 0.158 H 17.4°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#B63B4A
RGB	rgb(182, 59, 74)
HSL	hsl(353, 51%, 47%)
HSV	hsv(353, 68%, 71%)
CMYK	cmyk(0%, 67.6%, 59.3%, 28.6%)
CIE-LAB	lab(43.61, 50.49, 19.24)
CIE-LCH	lch(43.61, 54.03, 20.86°)
OKLab	oklab(53.35% 0.1509 0.0472)
OKLCH	oklch(53.35% 0.158 17.4)
XYZ	xyz(22.0935, 13.5705, 7.9332)
Luminance	0.1357 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B4A #3BB6A7

analogous

#B63B88 #B63B4A #B66A3B

triadic

#B63B4A #4AB63B #3B4AB6

tetradic

#B63B4A #88B63B #3BB6A7 #6A3BB6

square

#B63B4A #88B63B #3BB6A7 #6A3BB6

split-complementary

#B63B4A #3BB66A #3B88B6

monochromatic

#5A1D24 #882C37 #B63B4A #CC626F #DB9099

Accessibility & contrast

On white

5.66

#B63B4A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B63B4A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B4A

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B4A	#FFFFFF	#000000	##FFFFFF
##B63B4A	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A574A

Deuteranopia (green-blind)

#7A7147

Tritanopia (blue-blind)

#C72041

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63b4a;
/* rgb */ color: rgb(182, 59, 74);
/* oklch */ color: oklch(53.4% 0.158 17.4);

Tailwind

colors: {
  custom: {
    50: '#d2787c',
    500: '#b63b4a',
    950: '#000000',
  },
}

SCSS

$custom: #b63b4a;
$custom-light: #d2787c;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b4a",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 74
  },
  "hsl": {
    "h": 352.683,
    "s": 51.037,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53351,
    "c": 0.15812,
    "h": 17.4
  },
  "luminance": 0.13567
}

Semantic roles & 50–950 ramp

primary

#B63B4A

secondary

#87C6BE

accent

#DBC94D

background

#FDF7F7

surface

#FBEEEE

border

#D4C9C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B63B4A

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

Preview Lab → · Contrast checker → · Palette generator →