#B63D43#B63D43

#B63D43 is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.4% C 0.156 H 21.4°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#B63D43
RGB	rgb(182, 61, 67)
HSL	hsl(357, 50%, 48%)
HSV	hsv(357, 66%, 71%)
CMYK	cmyk(0%, 66.5%, 63.2%, 28.6%)
CIE-LAB	lab(43.79, 49.18, 23.75)
CIE-LCH	lch(43.79, 54.62, 25.78°)
OKLab	oklab(53.44% 0.1455 0.057)
OKLCH	oklch(53.44% 0.156 21.4)
XYZ	xyz(21.9754, 13.6909, 6.7945)
Luminance	0.1369 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63D43 #3DB6B0

analogous

#B63D7F #B63D43 #B6743D

triadic

#B63D43 #43B63D #3D43B6

tetradic

#B63D43 #7FB63D #3DB6B0 #743DB6

square

#B63D43 #7FB63D #3DB6B0 #743DB6

split-complementary

#B63D43 #3DB674 #3D7FB6

monochromatic

#5A1E21 #882E32 #B63D43 #CB656A #DB9396

Accessibility & contrast

On white

5.62

#B63D43 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#B63D43 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63D43

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63D43	#FFFFFF	#000000	##FFFFFF
##B63D43	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5742

Deuteranopia (green-blind)

#7B7140

Tritanopia (blue-blind)

#C72140

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63d43;
/* rgb */ color: rgb(182, 61, 67);
/* oklch */ color: oklch(53.4% 0.156 21.4);

Tailwind

colors: {
  custom: {
    50: '#d37977',
    500: '#b63d43',
    950: '#000000',
  },
}

SCSS

$custom: #b63d43;
$custom-light: #d37977;
$custom-dark: #000000;

JSON

{
  "hex": "#b63d43",
  "rgb": {
    "r": 182,
    "g": 61,
    "b": 67
  },
  "hsl": {
    "h": 357.025,
    "s": 49.794,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53441,
    "c": 0.15625,
    "h": 21.4
  },
  "luminance": 0.13688
}

Semantic roles & 50–950 ramp

primary

#B63D43

secondary

#89C6C3

accent

#D9D24E

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B63D43

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

Preview Lab → · Contrast checker → · Palette generator →