#B73533#B73533

#B73533 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.167 H 25.8°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#B73533
RGB	rgb(183, 53, 51)
HSL	hsl(1, 56%, 46%)
HSV	hsv(1, 72%, 72%)
CMYK	cmyk(0%, 71%, 72.1%, 28.2%)
CIE-LAB	lab(42.55, 51.84, 31.86)
CIE-LCH	lch(42.55, 60.85, 31.58°)
OKLab	oklab(52.47% 0.1505 0.0727)
OKLCH	oklch(52.47% 0.167 25.8)
XYZ	xyz(21.4015, 12.8557, 4.4858)
Luminance	0.1285 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73533 #33B5B7

analogous

#B73373 #B73533 #B77733

triadic

#B73533 #33B735 #3533B7

tetradic

#B73533 #73B733 #33B5B7 #7733B7

square

#B73533 #73B733 #33B5B7 #7733B7

split-complementary

#B73533 #33B777 #3373B7

monochromatic

#571918 #872726 #B73533 #D05957 #DE8887

Accessibility & contrast

On white

5.88

#B73533 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B73533 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73533

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73533	#FFFFFF	#000000	##FFFFFF
##B73533	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5331

Deuteranopia (green-blind)

#7B6F2F

Tritanopia (blue-blind)

#C90336

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b73533;
/* rgb */ color: rgb(183, 53, 51);
/* oklch */ color: oklch(52.5% 0.167 25.8);

Tailwind

colors: {
  custom: {
    50: '#d5756b',
    500: '#b73533',
    950: '#000000',
  },
}

SCSS

$custom: #b73533;
$custom-light: #d5756b;
$custom-dark: #000000;

JSON

{
  "hex": "#b73533",
  "rgb": {
    "r": 183,
    "g": 53,
    "b": 51
  },
  "hsl": {
    "h": 0.909,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52467,
    "c": 0.16712,
    "h": 25.8
  },
  "luminance": 0.12853
}

Semantic roles & 50–950 ramp

primary

#B73533

secondary

#7FC6C7

accent

#DDE048

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73533

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

Preview Lab → · Contrast checker → · Palette generator →