#B63A3E#B63A3E

#B63A3E is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.0% C 0.160 H 22.7°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#B63A3E
RGB	rgb(182, 58, 62)
HSL	hsl(358, 52%, 47%)
HSV	hsv(358, 68%, 71%)
CMYK	cmyk(0%, 68.1%, 65.9%, 28.6%)
CIE-LAB	lab(43.24, 50.12, 26.10)
CIE-LCH	lch(43.24, 56.50, 27.51°)
OKLab	oklab(53.01% 0.1475 0.0617)
OKLCH	oklch(53.01% 0.16 22.7)
XYZ	xyz(21.6762, 13.3221, 5.9865)
Luminance	0.1332 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63A3E #3AB6B2

analogous

#B63A7C #B63A3E #B6743A

triadic

#B63A3E #3EB63A #3A3EB6

tetradic

#B63A3E #7CB63A #3AB6B2 #743AB6

square

#B63A3E #7CB63A #3AB6B2 #743AB6

split-complementary

#B63A3E #3AB674 #3A7CB6

monochromatic

#591C1E #882B2E #B63A3E #CD6164 #DB8F92

Accessibility & contrast

On white

5.73

#B63A3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B63A3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63A3E

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63A3E	#FFFFFF	#000000	##FFFFFF
##B63A3E	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C553D

Deuteranopia (green-blind)

#7B703A

Tritanopia (blue-blind)

#C8193D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63a3e;
/* rgb */ color: rgb(182, 58, 62);
/* oklch */ color: oklch(53.0% 0.160 22.7);

Tailwind

colors: {
  custom: {
    50: '#d37873',
    500: '#b63a3e',
    950: '#000000',
  },
}

SCSS

$custom: #b63a3e;
$custom-light: #d37873;
$custom-dark: #000000;

JSON

{
  "hex": "#b63a3e",
  "rgb": {
    "r": 182,
    "g": 58,
    "b": 62
  },
  "hsl": {
    "h": 358.065,
    "s": 51.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53008,
    "c": 0.15986,
    "h": 22.7
  },
  "luminance": 0.13319
}

Semantic roles & 50–950 ramp

primary

#B63A3E

secondary

#86C6C4

accent

#DBD74D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B63A3E

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

Preview Lab → · Contrast checker → · Palette generator →