#B73F33#B73F33

#B73F33 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.6% C 0.157 H 29.0°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#B73F33
RGB	rgb(183, 63, 51)
HSL	hsl(5, 56%, 46%)
HSV	hsv(5, 72%, 72%)
CMYK	cmyk(0%, 65.6%, 72.1%, 28.2%)
CIE-LAB	lab(44.04, 47.77, 33.59)
CIE-LCH	lch(44.04, 58.40, 35.11°)
OKLab	oklab(53.59% 0.1377 0.0764)
OKLCH	oklch(53.59% 0.157 29)
XYZ	xyz(21.9058, 13.8644, 4.6539)
Luminance	0.1386 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73F33 #33ABB7

analogous

#B73369 #B73F33 #B78133

triadic

#B73F33 #33B73F #3F33B7

tetradic

#B73F33 #69B733 #33ABB7 #8133B7

square

#B73F33 #69B733 #33ABB7 #8133B7

split-complementary

#B73F33 #33B781 #3369B7

monochromatic

#571E18 #872F26 #B73F33 #D06257 #DE8F87

Accessibility & contrast

On white

5.57

#B73F33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#B73F33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73F33

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73F33	#FFFFFF	#000000	##FFFFFF
##B73F33	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605831

Deuteranopia (green-blind)

#7E722F

Tritanopia (blue-blind)

#C91F3D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73f33;
/* rgb */ color: rgb(183, 63, 51);
/* oklch */ color: oklch(53.6% 0.157 29.0);

Tailwind

colors: {
  custom: {
    50: '#d47a6b',
    500: '#b73f33',
    950: '#000000',
  },
}

SCSS

$custom: #b73f33;
$custom-light: #d47a6b;
$custom-dark: #000000;

JSON

{
  "hex": "#b73f33",
  "rgb": {
    "r": 183,
    "g": 63,
    "b": 51
  },
  "hsl": {
    "h": 5.455,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.53585,
    "c": 0.15749,
    "h": 29
  },
  "luminance": 0.13861
}

Semantic roles & 50–950 ramp

primary

#B73F33

secondary

#7FC1C7

accent

#D2E048

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B73F33

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

Preview Lab → · Contrast checker → · Palette generator →