#B73F2D#B73F2D

#B73F2D is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.5% C 0.159 H 31.2°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#B73F2D
RGB	rgb(183, 63, 45)
HSL	hsl(8, 61%, 45%)
HSV	hsv(8, 75%, 72%)
CMYK	cmyk(0%, 65.6%, 75.4%, 28.2%)
CIE-LAB	lab(43.97, 47.50, 36.89)
CIE-LCH	lch(43.97, 60.15, 37.84°)
OKLab	oklab(53.51% 0.1357 0.0823)
OKLCH	oklch(53.51% 0.159 31.2)
XYZ	xyz(21.7820, 13.8149, 4.0017)
Luminance	0.1381 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73F2D #2DA5B7

analogous

#B72D60 #B73F2D #B7842D

triadic

#B73F2D #2DB73F #3F2DB7

tetradic

#B73F2D #60B72D #2DA5B7 #842DB7

square

#B73F2D #60B72D #2DA5B7 #842DB7

split-complementary

#B73F2D #2DB784 #2D60B7

monochromatic

#551D15 #862E21 #B73F2D #D35F4E #DF8C7F

Accessibility & contrast

On white

5.58

#B73F2D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#B73F2D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73F2D

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73F2D	#FFFFFF	#000000	##FFFFFF
##B73F2D	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61572A

Deuteranopia (green-blind)

#7F7229

Tritanopia (blue-blind)

#C91E3C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73f2d;
/* rgb */ color: rgb(183, 63, 45);
/* oklch */ color: oklch(53.5% 0.159 31.2);

Tailwind

colors: {
  custom: {
    50: '#d57a67',
    500: '#b73f2d',
    950: '#000000',
  },
}

SCSS

$custom: #b73f2d;
$custom-light: #d57a67;
$custom-dark: #000000;

JSON

{
  "hex": "#b73f2d",
  "rgb": {
    "r": 183,
    "g": 63,
    "b": 45
  },
  "hsl": {
    "h": 7.826,
    "s": 60.526,
    "l": 44.706
  },
  "oklch": {
    "l": 0.53508,
    "c": 0.15865,
    "h": 31.2
  },
  "luminance": 0.13812
}

Semantic roles & 50–950 ramp

primary

#B73F2D

secondary

#78BEC8

accent

#CFE444

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B73F2D

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

Preview Lab → · Contrast checker → · Palette generator →