#B73027#B73027

#B73027 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.8% C 0.173 H 28.5°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#B73027
RGB	rgb(183, 48, 39)
HSL	hsl(4, 65%, 44%)
HSV	hsv(4, 79%, 72%)
CMYK	cmyk(0%, 73.8%, 78.7%, 28.2%)
CIE-LAB	lab(41.74, 53.18, 37.85)
CIE-LCH	lch(41.74, 65.28, 35.44°)
OKLab	oklab(51.82% 0.1522 0.0827)
OKLCH	oklch(51.82% 0.173 28.5)
XYZ	xyz(20.9541, 12.3309, 3.1958)
Luminance	0.1233 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73027 #27AEB7

analogous

#B72766 #B73027 #B77827

triadic

#B73027 #27B730 #3027B7

tetradic

#B73027 #66B727 #27AEB7 #7827B7

square

#B73027 #66B727 #27AEB7 #7827B7

split-complementary

#B73027 #27B778 #2766B7

monochromatic

#521611 #85231C #B73027 #D74D44 #E27D76

Accessibility & contrast

On white

6.06

#B73027 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B73027 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73027

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73027	#FFFFFF	#000000	##FFFFFF
##B73027	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595025

Deuteranopia (green-blind)

#7A6D21

Tritanopia (blue-blind)

#CA002F

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b73027;
/* rgb */ color: rgb(183, 48, 39);
/* oklch */ color: oklch(51.8% 0.173 28.5);

Tailwind

colors: {
  custom: {
    50: '#d67262',
    500: '#b73027',
    950: '#000000',
  },
}

SCSS

$custom: #b73027;
$custom-light: #d67262;
$custom-dark: #000000;

JSON

{
  "hex": "#b73027",
  "rgb": {
    "r": 183,
    "g": 48,
    "b": 39
  },
  "hsl": {
    "h": 3.75,
    "s": 64.865,
    "l": 43.529
  },
  "oklch": {
    "l": 0.51818,
    "c": 0.17324,
    "h": 28.5
  },
  "luminance": 0.12328
}

Semantic roles & 50–950 ramp

primary

#B73027

secondary

#70C4C9

accent

#DDE840

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B73027

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

Preview Lab → · Contrast checker → · Palette generator →