#B73E2B#B73E2B

#B73E2B is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.4% C 0.160 H 31.6°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#B73E2B
RGB	rgb(183, 62, 43)
HSL	hsl(8, 62%, 44%)
HSV	hsv(8, 77%, 72%)
CMYK	cmyk(0%, 66.1%, 76.5%, 28.2%)
CIE-LAB	lab(43.79, 47.85, 37.80)
CIE-LCH	lch(43.79, 60.98, 38.31°)
OKLab	oklab(53.36% 0.1363 0.0837)
OKLCH	oklch(53.36% 0.16 31.6)
XYZ	xyz(21.6895, 13.6901, 3.7854)
Luminance	0.1369 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73E2B #2BA4B7

analogous

#B72B5E #B73E2B #B7842B

triadic

#B73E2B #2BB73E #3E2BB7

tetradic

#B73E2B #5EB72B #2BA4B7 #842BB7

square

#B73E2B #5EB72B #2BA4B7 #842BB7

split-complementary

#B73E2B #2BB784 #2B5EB7

monochromatic

#541C14 #852D1F #B73E2B #D55D4B #E08A7C

Accessibility & contrast

On white

5.62

#B73E2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#B73E2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73E2B

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73E2B	#FFFFFF	#000000	##FFFFFF
##B73E2B	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605728

Deuteranopia (green-blind)

#7E7127

Tritanopia (blue-blind)

#C91B3A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73e2b;
/* rgb */ color: rgb(183, 62, 43);
/* oklch */ color: oklch(53.4% 0.160 31.6);

Tailwind

colors: {
  custom: {
    50: '#d57965',
    500: '#b73e2b',
    950: '#000000',
  },
}

SCSS

$custom: #b73e2b;
$custom-light: #d57965;
$custom-dark: #000000;

JSON

{
  "hex": "#b73e2b",
  "rgb": {
    "r": 183,
    "g": 62,
    "b": 43
  },
  "hsl": {
    "h": 8.143,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.53365,
    "c": 0.16,
    "h": 31.6
  },
  "luminance": 0.13687
}

Semantic roles & 50–950 ramp

primary

#B73E2B

secondary

#75BDC9

accent

#CFE543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B73E2B

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

Preview Lab → · Contrast checker → · Palette generator →