#B63A35#B63A35

#B63A35 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.9% C 0.161 H 26.5°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#B63A35
RGB	rgb(182, 58, 53)
HSL	hsl(2, 55%, 46%)
HSV	hsv(2, 71%, 71%)
CMYK	cmyk(0%, 68.1%, 70.9%, 28.6%)
CIE-LAB	lab(43.11, 49.63, 31.30)
CIE-LCH	lch(43.11, 58.68, 32.24°)
OKLab	oklab(52.86% 0.1441 0.0719)
OKLCH	oklch(52.86% 0.161 26.5)
XYZ	xyz(21.4494, 13.2314, 4.7919)
Luminance	0.1323 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63A35 #35B1B6

analogous

#B63570 #B63A35 #B67A35

triadic

#B63A35 #35B63A #3A35B6

tetradic

#B63A35 #70B635 #35B1B6 #7A35B6

square

#B63A35 #70B635 #35B1B6 #7A35B6

split-complementary

#B63A35 #35B67A #3570B6

monochromatic

#571C19 #872B27 #B63A35 #CF5E59 #DD8C89

Accessibility & contrast

On white

5.76

#B63A35 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B63A35 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63A35

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63A35	#FFFFFF	#000000	##FFFFFF
##B63A35	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5533

Deuteranopia (green-blind)

#7C7031

Tritanopia (blue-blind)

#C8163A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63a35;
/* rgb */ color: rgb(182, 58, 53);
/* oklch */ color: oklch(52.9% 0.161 26.5);

Tailwind

colors: {
  custom: {
    50: '#d4776c',
    500: '#b63a35',
    950: '#000000',
  },
}

SCSS

$custom: #b63a35;
$custom-light: #d4776c;
$custom-dark: #000000;

JSON

{
  "hex": "#b63a35",
  "rgb": {
    "r": 182,
    "g": 58,
    "b": 53
  },
  "hsl": {
    "h": 2.326,
    "s": 54.894,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52864,
    "c": 0.16101,
    "h": 26.5
  },
  "luminance": 0.13228
}

Semantic roles & 50–950 ramp

primary

#B63A35

secondary

#80C4C7

accent

#D8DE4A

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63A35

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

Preview Lab → · Contrast checker → · Palette generator →