#B73A3D#B73A3D

#B73A3D is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.2% C 0.161 H 23.2°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#B73A3D
RGB	rgb(183, 58, 61)
HSL	hsl(359, 52%, 47%)
HSV	hsv(359, 68%, 72%)
CMYK	cmyk(0%, 68.3%, 66.7%, 28.2%)
CIE-LAB	lab(43.41, 50.39, 26.94)
CIE-LCH	lch(43.41, 57.14, 28.13°)
OKLab	oklab(53.16% 0.148 0.0634)
OKLCH	oklch(53.16% 0.161 23.2)
XYZ	xyz(21.8861, 13.4334, 5.8544)
Luminance	0.1343 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73A3D #3AB7B4

analogous

#B73A7C #B73A3D #B7763A

triadic

#B73A3D #3DB73A #3A3DB7

tetradic

#B73A3D #7CB73A #3AB7B4 #763AB7

square

#B73A3D #7CB73A #3AB7B4 #763AB7

split-complementary

#B73A3D #3AB776 #3A7CB7

monochromatic

#5A1D1E #892B2E #B73A3D #CD6164 #DC9092

Accessibility & contrast

On white

5.70

#B73A3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B73A3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73A3D

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73A3D	#FFFFFF	#000000	##FFFFFF
##B73A3D	1.00	5.70	3.69	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C563C

Deuteranopia (green-blind)

#7B7039

Tritanopia (blue-blind)

#C9183C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73a3d;
/* rgb */ color: rgb(183, 58, 61);
/* oklch */ color: oklch(53.2% 0.161 23.2);

Tailwind

colors: {
  custom: {
    50: '#d47872',
    500: '#b73a3d',
    950: '#000000',
  },
}

SCSS

$custom: #b73a3d;
$custom-light: #d47872;
$custom-dark: #000000;

JSON

{
  "hex": "#b73a3d",
  "rgb": {
    "r": 183,
    "g": 58,
    "b": 61
  },
  "hsl": {
    "h": 358.56,
    "s": 51.867,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5316,
    "c": 0.16104,
    "h": 23.2
  },
  "luminance": 0.1343
}

Semantic roles & 50–950 ramp

primary

#B73A3D

secondary

#86C7C5

accent

#DBD84C

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160908

muted

#847B7B

Preview Lab

Preview with #B73A3D

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

Preview Lab → · Contrast checker → · Palette generator →