#B73B3D#B73B3D

#B73B3D is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.3% C 0.160 H 23.5°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#B73B3D
RGB	rgb(183, 59, 61)
HSL	hsl(359, 51%, 47%)
HSV	hsv(359, 68%, 72%)
CMYK	cmyk(0%, 67.8%, 66.7%, 28.2%)
CIE-LAB	lab(43.56, 49.98, 27.13)
CIE-LCH	lch(43.56, 56.87, 28.49°)
OKLab	oklab(53.27% 0.1467 0.0638)
OKLCH	oklch(53.27% 0.16 23.5)
XYZ	xyz(21.9370, 13.5353, 5.8714)
Luminance	0.1353 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73B3D #3BB7B5

analogous

#B73B7B #B73B3D #B7773B

triadic

#B73B3D #3DB73B #3B3DB7

tetradic

#B73B3D #7BB73B #3BB7B5 #773BB7

square

#B73B3D #7BB73B #3BB7B5 #773BB7

split-complementary

#B73B3D #3BB777 #3B7BB7

monochromatic

#5A1D1E #892C2E #B73B3D #CD6364 #DC9192

Accessibility & contrast

On white

5.67

#B73B3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B73B3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73B3D

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73B3D	#FFFFFF	#000000	##FFFFFF
##B73B3D	1.00	5.67	3.71	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D563C

Deuteranopia (green-blind)

#7C7139

Tritanopia (blue-blind)

#C91A3D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73b3d;
/* rgb */ color: rgb(183, 59, 61);
/* oklch */ color: oklch(53.3% 0.160 23.5);

Tailwind

colors: {
  custom: {
    50: '#d47872',
    500: '#b73b3d',
    950: '#000000',
  },
}

SCSS

$custom: #b73b3d;
$custom-light: #d47872;
$custom-dark: #000000;

JSON

{
  "hex": "#b73b3d",
  "rgb": {
    "r": 183,
    "g": 59,
    "b": 61
  },
  "hsl": {
    "h": 359.032,
    "s": 51.24,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53272,
    "c": 0.16002,
    "h": 23.5
  },
  "luminance": 0.13532
}

Semantic roles & 50–950 ramp

primary

#B73B3D

secondary

#87C6C5

accent

#DBD84D

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160908

muted

#847B7B

Preview Lab

Preview with #B73B3D

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

Preview Lab → · Contrast checker → · Palette generator →