#B73328#B73328

#B73328 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.171 H 29.0°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#B73328
RGB	rgb(183, 51, 40)
HSL	hsl(5, 64%, 44%)
HSV	hsv(5, 78%, 72%)
CMYK	cmyk(0%, 72.1%, 78.1%, 28.2%)
CIE-LAB	lab(42.14, 52.13, 37.72)
CIE-LCH	lch(42.14, 64.35, 35.89°)
OKLab	oklab(52.12% 0.1491 0.0827)
OKLCH	oklch(52.12% 0.171 29)
XYZ	xyz(21.0977, 12.5914, 3.3266)
Luminance	0.1259 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73328 #28ACB7

analogous

#B72864 #B73328 #B77A28

triadic

#B73328 #28B733 #3328B7

tetradic

#B73328 #64B728 #28ACB7 #7A28B7

square

#B73328 #64B728 #28ACB7 #7A28B7

split-complementary

#B73328 #28B77A #2864B7

monochromatic

#531712 #85251D #B73328 #D65146 #E18078

Accessibility & contrast

On white

5.97

#B73328 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B73328 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73328

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73328	#FFFFFF	#000000	##FFFFFF
##B73328	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5125

Deuteranopia (green-blind)

#7B6E22

Tritanopia (blue-blind)

#CA0032

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b73328;
/* rgb */ color: rgb(183, 51, 40);
/* oklch */ color: oklch(52.1% 0.171 29.0);

Tailwind

colors: {
  custom: {
    50: '#d57463',
    500: '#b73328',
    950: '#000000',
  },
}

SCSS

$custom: #b73328;
$custom-light: #d57463;
$custom-dark: #000000;

JSON

{
  "hex": "#b73328",
  "rgb": {
    "r": 183,
    "g": 51,
    "b": 40
  },
  "hsl": {
    "h": 4.615,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.52123,
    "c": 0.17053,
    "h": 29
  },
  "luminance": 0.12588
}

Semantic roles & 50–950 ramp

primary

#B73328

secondary

#72C2C9

accent

#DAE741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B73328

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

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