#B63A38#B63A38

#B63A38 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.161 H 25.3°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B63A38
RGB	rgb(182, 58, 56)
HSL	hsl(1, 53%, 47%)
HSV	hsv(1, 69%, 71%)
CMYK	cmyk(0%, 68.1%, 69.2%, 28.6%)
CIE-LAB	lab(43.15, 49.78, 29.58)
CIE-LCH	lch(43.15, 57.91, 30.72°)
OKLab	oklab(52.91% 0.1452 0.0686)
OKLCH	oklch(52.91% 0.161 25.3)
XYZ	xyz(21.5206, 13.2598, 5.1668)
Luminance	0.1326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63A38 #38B4B6

analogous

#B63875 #B63A38 #B67938

triadic

#B63A38 #38B63A #3A38B6

tetradic

#B63A38 #75B638 #38B4B6 #7938B6

square

#B63A38 #75B638 #38B4B6 #7938B6

split-complementary

#B63A38 #38B679 #3875B6

monochromatic

#581C1B #872B2A #B63A38 #CD605E #DC8E8D

Accessibility & contrast

On white

5.75

#B63A38 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B63A38 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63A38

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63A38	#FFFFFF	#000000	##FFFFFF
##B63A38	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5537

Deuteranopia (green-blind)

#7B7034

Tritanopia (blue-blind)

#C8173B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63a38;
/* rgb */ color: rgb(182, 58, 56);
/* oklch */ color: oklch(52.9% 0.161 25.3);

Tailwind

colors: {
  custom: {
    50: '#d3776f',
    500: '#b63a38',
    950: '#000000',
  },
}

SCSS

$custom: #b63a38;
$custom-light: #d3776f;
$custom-dark: #000000;

JSON

{
  "hex": "#b63a38",
  "rgb": {
    "r": 182,
    "g": 58,
    "b": 56
  },
  "hsl": {
    "h": 0.952,
    "s": 52.941,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52909,
    "c": 0.16058,
    "h": 25.3
  },
  "luminance": 0.13257
}

Semantic roles & 50–950 ramp

primary

#B63A38

secondary

#84C5C6

accent

#DADC4B

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63A38

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

Preview Lab → · Contrast checker → · Palette generator →