#B63748#B63748

#B63748 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.9% C 0.162 H 17.2°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B63748
RGB	rgb(182, 55, 72)
HSL	hsl(352, 54%, 46%)
HSV	hsv(352, 70%, 71%)
CMYK	cmyk(0%, 69.8%, 60.4%, 28.6%)
CIE-LAB	lab(42.99, 51.95, 19.65)
CIE-LCH	lch(42.99, 55.54, 20.72°)
OKLab	oklab(52.87% 0.1552 0.048)
OKLCH	oklch(52.87% 0.162 17.2)
XYZ	xyz(21.8294, 13.1484, 7.5181)
Luminance	0.1315 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63748 #37B6A5

analogous

#B63787 #B63748 #B66637

triadic

#B63748 #48B637 #3748B6

tetradic

#B63748 #87B637 #37B6A5 #6637B6

square

#B63748 #87B637 #37B6A5 #6637B6

split-complementary

#B63748 #37B666 #3787B6

monochromatic

#581B23 #872935 #B63748 #CE5C6C #DC8B96

Accessibility & contrast

On white

5.79

#B63748 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B63748 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63748

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63748	#FFFFFF	#000000	##FFFFFF
##B63748	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585548

Deuteranopia (green-blind)

#796F45

Tritanopia (blue-blind)

#C7173E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b63748;
/* rgb */ color: rgb(182, 55, 72);
/* oklch */ color: oklch(52.9% 0.162 17.2);

Tailwind

colors: {
  custom: {
    50: '#d3767a',
    500: '#b63748',
    950: '#000000',
  },
}

SCSS

$custom: #b63748;
$custom-light: #d3767a;
$custom-dark: #000000;

JSON

{
  "hex": "#b63748",
  "rgb": {
    "r": 182,
    "g": 55,
    "b": 72
  },
  "hsl": {
    "h": 351.969,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52873,
    "c": 0.16247,
    "h": 17.2
  },
  "luminance": 0.13145
}

Semantic roles & 50–950 ramp

primary

#B63748

secondary

#82C6BD

accent

#DDC94B

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150909

muted

#837B7B

Preview Lab

Preview with #B63748

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

Preview Lab → · Contrast checker → · Palette generator →