#B73B35#B73B35

#B73B35 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.161 H 26.9°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#B73B35
RGB	rgb(183, 59, 53)
HSL	hsl(3, 55%, 46%)
HSV	hsv(3, 71%, 72%)
CMYK	cmyk(0%, 67.8%, 71%, 28.2%)
CIE-LAB	lab(43.44, 49.56, 31.74)
CIE-LCH	lch(43.44, 58.85, 32.64°)
OKLab	oklab(53.15% 0.1437 0.0728)
OKLCH	oklch(53.15% 0.161 26.9)
XYZ	xyz(21.7374, 13.4554, 4.8200)
Luminance	0.1345 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73B35 #35B1B7

analogous

#B73570 #B73B35 #B77C35

triadic

#B73B35 #35B73B #3B35B7

tetradic

#B73B35 #70B735 #35B1B7 #7C35B7

square

#B73B35 #70B735 #35B1B7 #7C35B7

split-complementary

#B73B35 #35B77C #3570B7

monochromatic

#581C1A #882C27 #B73B35 #CF5F5A #DD8D89

Accessibility & contrast

On white

5.69

#B73B35 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B73B35 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73B35

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73B35	#FFFFFF	#000000	##FFFFFF
##B73B35	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5633

Deuteranopia (green-blind)

#7D7131

Tritanopia (blue-blind)

#C9173B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73b35;
/* rgb */ color: rgb(183, 59, 53);
/* oklch */ color: oklch(53.1% 0.161 26.9);

Tailwind

colors: {
  custom: {
    50: '#d4786c',
    500: '#b73b35',
    950: '#000000',
  },
}

SCSS

$custom: #b73b35;
$custom-light: #d4786c;
$custom-dark: #000000;

JSON

{
  "hex": "#b73b35",
  "rgb": {
    "r": 183,
    "g": 59,
    "b": 53
  },
  "hsl": {
    "h": 2.769,
    "s": 55.085,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53146,
    "c": 0.16109,
    "h": 26.9
  },
  "luminance": 0.13452
}

Semantic roles & 50–950 ramp

primary

#B73B35

secondary

#81C4C7

accent

#D8DE49

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B73B35

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

Preview Lab → · Contrast checker → · Palette generator →