#B73929#B73929

#B73929 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.8% C 0.165 H 30.5°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B73929
RGB	rgb(183, 57, 41)
HSL	hsl(7, 63%, 44%)
HSV	hsv(7, 78%, 72%)
CMYK	cmyk(0%, 68.9%, 77.6%, 28.2%)
CIE-LAB	lab(43.00, 49.85, 38.07)
CIE-LCH	lch(43.00, 62.72, 37.37°)
OKLab	oklab(52.77% 0.1422 0.0838)
OKLCH	oklch(52.77% 0.165 30.5)
XYZ	xyz(21.3942, 13.1568, 3.5104)
Luminance	0.1315 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73929 #29A7B7

analogous

#B72960 #B73929 #B78029

triadic

#B73929 #29B739 #3929B7

tetradic

#B73929 #60B729 #29A7B7 #8029B7

square

#B73929 #60B729 #29A7B7 #8029B7

split-complementary

#B73929 #29B780 #2960B7

monochromatic

#531A13 #85291E #B73929 #D65747 #E18579

Accessibility & contrast

On white

5.78

#B73929 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B73929 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73929

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73929	#FFFFFF	#000000	##FFFFFF
##B73929	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5426

Deuteranopia (green-blind)

#7D7024

Tritanopia (blue-blind)

#CA0E36

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73929;
/* rgb */ color: rgb(183, 57, 41);
/* oklch */ color: oklch(52.8% 0.165 30.5);

Tailwind

colors: {
  custom: {
    50: '#d57764',
    500: '#b73929',
    950: '#000000',
  },
}

SCSS

$custom: #b73929;
$custom-light: #d57764;
$custom-dark: #000000;

JSON

{
  "hex": "#b73929",
  "rgb": {
    "r": 183,
    "g": 57,
    "b": 41
  },
  "hsl": {
    "h": 6.761,
    "s": 63.393,
    "l": 43.922
  },
  "oklch": {
    "l": 0.52768,
    "c": 0.16501,
    "h": 30.5
  },
  "luminance": 0.13154
}

Semantic roles & 50–950 ramp

primary

#B73929

secondary

#73BFC9

accent

#D4E641

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B73929

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

Preview Lab → · Contrast checker → · Palette generator →