#B63A29#B63A29

#B63A29 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.7% C 0.163 H 30.9°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B63A29
RGB	rgb(182, 58, 41)
HSL	hsl(7, 63%, 44%)
HSV	hsv(7, 77%, 71%)
CMYK	cmyk(0%, 68.1%, 77.5%, 28.6%)
CIE-LAB	lab(42.97, 49.10, 37.98)
CIE-LCH	lch(42.97, 62.07, 37.72°)
OKLab	oklab(52.71% 0.14 0.0836)
OKLCH	oklch(52.71% 0.163 30.9)
XYZ	xyz(21.2071, 13.1344, 3.5159)
Luminance	0.1313 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63A29 #29A5B6

analogous

#B6295E #B63A29 #B68029

triadic

#B63A29 #29B63A #3A29B6

tetradic

#B63A29 #5EB629 #29A5B6 #8029B6

square

#B63A29 #5EB629 #29A5B6 #8029B6

split-complementary

#B63A29 #29B680 #295EB6

monochromatic

#521A12 #842A1E #B63A29 #D55847 #E18579

Accessibility & contrast

On white

5.79

#B63A29 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B63A29 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63A29

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63A29	#FFFFFF	#000000	##FFFFFF
##B63A29	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)

#5E5426

Deuteranopia (green-blind)

#7C7024

Tritanopia (blue-blind)

#C81237

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b63a29;
/* rgb */ color: rgb(182, 58, 41);
/* oklch */ color: oklch(52.7% 0.163 30.9);

Tailwind

colors: {
  custom: {
    50: '#d47764',
    500: '#b63a29',
    950: '#000000',
  },
}

SCSS

$custom: #b63a29;
$custom-light: #d47764;
$custom-dark: #000000;

JSON

{
  "hex": "#b63a29",
  "rgb": {
    "r": 182,
    "g": 58,
    "b": 41
  },
  "hsl": {
    "h": 7.234,
    "s": 63.229,
    "l": 43.725
  },
  "oklch": {
    "l": 0.52709,
    "c": 0.16305,
    "h": 30.9
  },
  "luminance": 0.13131
}

Semantic roles & 50–950 ramp

primary

#B63A29

secondary

#72BEC9

accent

#D2E642

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B63A29

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

Preview Lab → · Contrast checker → · Palette generator →