#B73F27#B73F27

#B73F27 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.4% C 0.160 H 33.2°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#B73F27
RGB	rgb(183, 63, 39)
HSL	hsl(10, 65%, 44%)
HSV	hsv(10, 79%, 72%)
CMYK	cmyk(0%, 65.6%, 78.7%, 28.2%)
CIE-LAB	lab(43.90, 47.27, 40.08)
CIE-LCH	lch(43.90, 61.97, 40.30°)
OKLab	oklab(53.44% 0.1338 0.0876)
OKLCH	oklch(53.44% 0.16 33.2)
XYZ	xyz(21.6746, 13.7719, 3.4360)
Luminance	0.1377 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73F27 #279FB7

analogous

#B72757 #B73F27 #B78727

triadic

#B73F27 #27B73F #3F27B7

tetradic

#B73F27 #57B727 #279FB7 #8727B7

square

#B73F27 #57B727 #279FB7 #8727B7

split-complementary

#B73F27 #27B787 #2757B7

monochromatic

#521C11 #852E1C #B73F27 #D75D44 #E28876

Accessibility & contrast

On white

5.59

#B73F27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#B73F27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73F27

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73F27	#FFFFFF	#000000	##FFFFFF
##B73F27	1.00	5.59	3.75	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615723

Deuteranopia (green-blind)

#7F7222

Tritanopia (blue-blind)

#C91D3A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73f27;
/* rgb */ color: rgb(183, 63, 39);
/* oklch */ color: oklch(53.4% 0.160 33.2);

Tailwind

colors: {
  custom: {
    50: '#d57a63',
    500: '#b73f27',
    950: '#000000',
  },
}

SCSS

$custom: #b73f27;
$custom-light: #d57a63;
$custom-dark: #000000;

JSON

{
  "hex": "#b73f27",
  "rgb": {
    "r": 183,
    "g": 63,
    "b": 39
  },
  "hsl": {
    "h": 10,
    "s": 64.865,
    "l": 43.529
  },
  "oklch": {
    "l": 0.53442,
    "c": 0.15986,
    "h": 33.2
  },
  "luminance": 0.13769
}

Semantic roles & 50–950 ramp

primary

#B73F27

secondary

#70BBC9

accent

#CCE840

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160A05

muted

#847C79

Preview Lab

Preview with #B73F27

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

Preview Lab → · Contrast checker → · Palette generator →