#B73C3E#B73C3E

#B73C3E is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.4% C 0.159 H 23.4°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#B73C3E
RGB	rgb(183, 60, 62)
HSL	hsl(359, 51%, 48%)
HSV	hsv(359, 67%, 72%)
CMYK	cmyk(0%, 67.2%, 66.1%, 28.2%)
CIE-LAB	lab(43.73, 49.63, 26.73)
CIE-LCH	lch(43.73, 56.37, 28.31°)
OKLab	oklab(53.4% 0.1458 0.0631)
OKLCH	oklch(53.4% 0.159 23.4)
XYZ	xyz(22.0161, 13.6499, 6.0319)
Luminance	0.1365 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73C3E #3CB7B5

analogous

#B73C7C #B73C3E #B7773C

triadic

#B73C3E #3EB73C #3C3EB7

tetradic

#B73C3E #7CB73C #3CB7B5 #773CB7

square

#B73C3E #7CB73C #3CB7B5 #773CB7

split-complementary

#B73C3E #3CB777 #3C7CB7

monochromatic

#5B1E1F #892D2E #B73C3E #CC6466 #DB9293

Accessibility & contrast

On white

5.63

#B73C3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#B73C3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73C3E

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73C3E	#FFFFFF	#000000	##FFFFFF
##B73C3E	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D573D

Deuteranopia (green-blind)

#7C713A

Tritanopia (blue-blind)

#C91D3E

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73c3e;
/* rgb */ color: rgb(183, 60, 62);
/* oklch */ color: oklch(53.4% 0.159 23.4);

Tailwind

colors: {
  custom: {
    50: '#d47973',
    500: '#b73c3e',
    950: '#000000',
  },
}

SCSS

$custom: #b73c3e;
$custom-light: #d47973;
$custom-dark: #000000;

JSON

{
  "hex": "#b73c3e",
  "rgb": {
    "r": 183,
    "g": 60,
    "b": 62
  },
  "hsl": {
    "h": 359.024,
    "s": 50.617,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53402,
    "c": 0.15887,
    "h": 23.4
  },
  "luminance": 0.13647
}

Semantic roles & 50–950 ramp

primary

#B73C3E

secondary

#88C6C5

accent

#DAD84E

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B73C3E

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

Preview Lab → · Contrast checker → · Palette generator →