#B73A29#B73A29

#B73A29 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.164 H 30.8°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B73A29
RGB	rgb(183, 58, 41)
HSL	hsl(7, 63%, 44%)
HSV	hsv(7, 78%, 72%)
CMYK	cmyk(0%, 68.3%, 77.6%, 28.2%)
CIE-LAB	lab(43.15, 49.44, 38.22)
CIE-LCH	lch(43.15, 62.49, 37.71°)
OKLab	oklab(52.88% 0.1409 0.0841)
OKLCH	oklch(52.88% 0.164 30.8)
XYZ	xyz(21.4442, 13.2567, 3.5270)
Luminance	0.1325 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73A29 #29A6B7

analogous

#B7295F #B73A29 #B78129

triadic

#B73A29 #29B73A #3A29B7

tetradic

#B73A29 #5FB729 #29A6B7 #8129B7

square

#B73A29 #5FB729 #29A6B7 #8129B7

split-complementary

#B73A29 #29B781 #295FB7

monochromatic

#531A13 #852A1E #B73A29 #D65847 #E18679

Accessibility & contrast

On white

5.75

#B73A29 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B73A29 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73A29

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73A29	#FFFFFF	#000000	##FFFFFF
##B73A29	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)

#5E5426

Deuteranopia (green-blind)

#7D7024

Tritanopia (blue-blind)

#C91137

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73a29;
/* rgb */ color: rgb(183, 58, 41);
/* oklch */ color: oklch(52.9% 0.164 30.8);

Tailwind

colors: {
  custom: {
    50: '#d57764',
    500: '#b73a29',
    950: '#000000',
  },
}

SCSS

$custom: #b73a29;
$custom-light: #d57764;
$custom-dark: #000000;

JSON

{
  "hex": "#b73a29",
  "rgb": {
    "r": 183,
    "g": 58,
    "b": 41
  },
  "hsl": {
    "h": 7.183,
    "s": 63.393,
    "l": 43.922
  },
  "oklch": {
    "l": 0.5288,
    "c": 0.1641,
    "h": 30.8
  },
  "luminance": 0.13253
}

Semantic roles & 50–950 ramp

primary

#B73A29

secondary

#73BFC9

accent

#D3E641

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B73A29

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

Preview Lab → · Contrast checker → · Palette generator →