#B73D35#B73D35

#B73D35 is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.4% C 0.159 H 27.5°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#B73D35
RGB	rgb(183, 61, 53)
HSL	hsl(4, 55%, 46%)
HSV	hsv(4, 71%, 72%)
CMYK	cmyk(0%, 66.7%, 71%, 28.2%)
CIE-LAB	lab(43.75, 48.72, 32.09)
CIE-LCH	lch(43.75, 58.34, 33.37°)
OKLab	oklab(53.38% 0.1411 0.0736)
OKLCH	oklch(53.38% 0.159 27.5)
XYZ	xyz(21.8421, 13.6649, 4.8549)
Luminance	0.1366 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73D35 #35AFB7

analogous

#B7356E #B73D35 #B77E35

triadic

#B73D35 #35B73D #3D35B7

tetradic

#B73D35 #6EB735 #35AFB7 #7E35B7

square

#B73D35 #6EB735 #35AFB7 #7E35B7

split-complementary

#B73D35 #35B77E #356EB7

monochromatic

#581D1A #882D27 #B73D35 #CF615A #DD8F89

Accessibility & contrast

On white

5.63

#B73D35 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#B73D35 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73D35

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73D35	#FFFFFF	#000000	##FFFFFF
##B73D35	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5733

Deuteranopia (green-blind)

#7D7131

Tritanopia (blue-blind)

#C91C3C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73d35;
/* rgb */ color: rgb(183, 61, 53);
/* oklch */ color: oklch(53.4% 0.159 27.5);

Tailwind

colors: {
  custom: {
    50: '#d4796c',
    500: '#b73d35',
    950: '#000000',
  },
}

SCSS

$custom: #b73d35;
$custom-light: #d4796c;
$custom-dark: #000000;

JSON

{
  "hex": "#b73d35",
  "rgb": {
    "r": 183,
    "g": 61,
    "b": 53
  },
  "hsl": {
    "h": 3.692,
    "s": 55.085,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53376,
    "c": 0.15912,
    "h": 27.5
  },
  "luminance": 0.13662
}

Semantic roles & 50–950 ramp

primary

#B73D35

secondary

#81C3C7

accent

#D5DE49

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B73D35

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

Preview Lab → · Contrast checker → · Palette generator →