#B73228#B73228

#B73228 is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.0% C 0.171 H 28.7°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B73228
RGB	rgb(183, 50, 40)
HSL	hsl(4, 64%, 44%)
HSV	hsv(4, 78%, 72%)
CMYK	cmyk(0%, 72.7%, 78.1%, 28.2%)
CIE-LAB	lab(42.01, 52.50, 37.58)
CIE-LCH	lch(42.01, 64.56, 35.60°)
OKLab	oklab(52.02% 0.1503 0.0824)
OKLCH	oklch(52.02% 0.171 28.7)
XYZ	xyz(21.0545, 12.5049, 3.3121)
Luminance	0.1250 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73228 #28ADB7

analogous

#B72865 #B73228 #B77928

triadic

#B73228 #28B732 #3228B7

tetradic

#B73228 #65B728 #28ADB7 #7928B7

square

#B73228 #65B728 #28ADB7 #7928B7

split-complementary

#B73228 #28B779 #2865B7

monochromatic

#531712 #85241D #B73228 #D65046 #E17F78

Accessibility & contrast

On white

6.00

#B73228 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B73228 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73228

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73228	#FFFFFF	#000000	##FFFFFF
##B73228	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5126

Deuteranopia (green-blind)

#7B6E22

Tritanopia (blue-blind)

#CA0031

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b73228;
/* rgb */ color: rgb(183, 50, 40);
/* oklch */ color: oklch(52.0% 0.171 28.7);

Tailwind

colors: {
  custom: {
    50: '#d57363',
    500: '#b73228',
    950: '#000000',
  },
}

SCSS

$custom: #b73228;
$custom-light: #d57363;
$custom-dark: #000000;

JSON

{
  "hex": "#b73228",
  "rgb": {
    "r": 183,
    "g": 50,
    "b": 40
  },
  "hsl": {
    "h": 4.196,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.52024,
    "c": 0.1714,
    "h": 28.7
  },
  "luminance": 0.12502
}

Semantic roles & 50–950 ramp

primary

#B73228

secondary

#72C3C9

accent

#DBE741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B73228

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

Preview Lab → · Contrast checker → · Palette generator →