#B73E27#B73E27

#B73E27 is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.3% C 0.161 H 32.8°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#B73E27
RGB	rgb(183, 62, 39)
HSL	hsl(10, 65%, 44%)
HSV	hsv(10, 79%, 72%)
CMYK	cmyk(0%, 66.1%, 78.7%, 28.2%)
CIE-LAB	lab(43.74, 47.70, 39.92)
CIE-LCH	lch(43.74, 62.20, 39.93°)
OKLab	oklab(53.32% 0.1351 0.0872)
OKLCH	oklch(53.32% 0.161 32.8)
XYZ	xyz(21.6197, 13.6622, 3.4177)
Luminance	0.1366 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73E27 #27A0B7

analogous

#B72758 #B73E27 #B78627

triadic

#B73E27 #27B73E #3E27B7

tetradic

#B73E27 #58B727 #27A0B7 #8627B7

square

#B73E27 #58B727 #27A0B7 #8627B7

split-complementary

#B73E27 #27B786 #2758B7

monochromatic

#521C11 #852D1C #B73E27 #D75C44 #E28876

Accessibility & contrast

On white

5.63

#B73E27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#B73E27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73E27

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73E27	#FFFFFF	#000000	##FFFFFF
##B73E27	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)

#615623

Deuteranopia (green-blind)

#7F7122

Tritanopia (blue-blind)

#C91B3A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73e27;
/* rgb */ color: rgb(183, 62, 39);
/* oklch */ color: oklch(53.3% 0.161 32.8);

Tailwind

colors: {
  custom: {
    50: '#d57963',
    500: '#b73e27',
    950: '#000000',
  },
}

SCSS

$custom: #b73e27;
$custom-light: #d57963;
$custom-dark: #000000;

JSON

{
  "hex": "#b73e27",
  "rgb": {
    "r": 183,
    "g": 62,
    "b": 39
  },
  "hsl": {
    "h": 9.583,
    "s": 64.865,
    "l": 43.529
  },
  "oklch": {
    "l": 0.53322,
    "c": 0.16079,
    "h": 32.8
  },
  "luminance": 0.13659
}

Semantic roles & 50–950 ramp

primary

#B73E27

secondary

#70BBC9

accent

#CDE840

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B73E27

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

Preview Lab → · Contrast checker → · Palette generator →