#B73028#B73028

#B73028 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.8% C 0.173 H 28.2°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#B73028
RGB	rgb(183, 48, 40)
HSL	hsl(3, 64%, 44%)
HSV	hsv(3, 78%, 72%)
CMYK	cmyk(0%, 73.8%, 78.1%, 28.2%)
CIE-LAB	lab(41.75, 53.22, 37.31)
CIE-LCH	lch(41.75, 64.99, 35.03°)
OKLab	oklab(51.83% 0.1525 0.0818)
OKLCH	oklch(51.83% 0.173 28.2)
XYZ	xyz(20.9709, 12.3376, 3.2843)
Luminance	0.1233 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73028 #28AFB7

analogous

#B72867 #B73028 #B77728

triadic

#B73028 #28B730 #3028B7

tetradic

#B73028 #67B728 #28AFB7 #7728B7

square

#B73028 #67B728 #28AFB7 #7728B7

split-complementary

#B73028 #28B777 #2867B7

monochromatic

#531612 #85231D #B73028 #D64E46 #E17E78

Accessibility & contrast

On white

6.06

#B73028 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B73028 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73028

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73028	#FFFFFF	#000000	##FFFFFF
##B73028	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)

#595026

Deuteranopia (green-blind)

#7A6D22

Tritanopia (blue-blind)

#CA0030

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b73028;
/* rgb */ color: rgb(183, 48, 40);
/* oklch */ color: oklch(51.8% 0.173 28.2);

Tailwind

colors: {
  custom: {
    50: '#d67263',
    500: '#b73028',
    950: '#000000',
  },
}

SCSS

$custom: #b73028;
$custom-light: #d67263;
$custom-dark: #000000;

JSON

{
  "hex": "#b73028",
  "rgb": {
    "r": 183,
    "g": 48,
    "b": 40
  },
  "hsl": {
    "h": 3.357,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.5183,
    "c": 0.17309,
    "h": 28.2
  },
  "luminance": 0.12334
}

Semantic roles & 50–950 ramp

primary

#B73028

secondary

#72C4C9

accent

#DEE741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B73028

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

Preview Lab → · Contrast checker → · Palette generator →