#B73B2D#B73B2D

#B73B2D is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.162 H 29.8°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#B73B2D
RGB	rgb(183, 59, 45)
HSL	hsl(6, 61%, 45%)
HSV	hsv(6, 75%, 72%)
CMYK	cmyk(0%, 67.8%, 75.4%, 28.2%)
CIE-LAB	lab(43.34, 49.19, 36.21)
CIE-LCH	lch(43.34, 61.08, 36.36°)
OKLab	oklab(53.04% 0.1409 0.0808)
OKLCH	oklch(53.04% 0.162 29.8)
XYZ	xyz(21.5685, 13.3878, 3.9305)
Luminance	0.1338 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73B2D #2DA9B7

analogous

#B72D64 #B73B2D #B7802D

triadic

#B73B2D #2DB73B #3B2DB7

tetradic

#B73B2D #64B72D #2DA9B7 #802DB7

square

#B73B2D #64B72D #2DA9B7 #802DB7

split-complementary

#B73B2D #2DB780 #2D64B7

monochromatic

#551B15 #862B21 #B73B2D #D35B4E #DF897F

Accessibility & contrast

On white

5.71

#B73B2D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B73B2D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73B2D

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73B2D	#FFFFFF	#000000	##FFFFFF
##B73B2D	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E552B

Deuteranopia (green-blind)

#7D7029

Tritanopia (blue-blind)

#C91539

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73b2d;
/* rgb */ color: rgb(183, 59, 45);
/* oklch */ color: oklch(53.0% 0.162 29.8);

Tailwind

colors: {
  custom: {
    50: '#d57867',
    500: '#b73b2d',
    950: '#000000',
  },
}

SCSS

$custom: #b73b2d;
$custom-light: #d57867;
$custom-dark: #000000;

JSON

{
  "hex": "#b73b2d",
  "rgb": {
    "r": 183,
    "g": 59,
    "b": 45
  },
  "hsl": {
    "h": 6.087,
    "s": 60.526,
    "l": 44.706
  },
  "oklch": {
    "l": 0.5304,
    "c": 0.16245,
    "h": 29.8
  },
  "luminance": 0.13385
}

Semantic roles & 50–950 ramp

primary

#B73B2D

secondary

#78C0C8

accent

#D3E444

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73B2D

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

Preview Lab → · Contrast checker → · Palette generator →