#B73231#B73231

#B73231 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.170 H 25.7°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#B73231
RGB	rgb(183, 50, 49)
HSL	hsl(0, 58%, 45%)
HSV	hsv(0, 73%, 72%)
CMYK	cmyk(0%, 72.7%, 73.2%, 28.2%)
CIE-LAB	lab(42.11, 52.86, 32.54)
CIE-LCH	lch(42.11, 62.08, 31.62°)
OKLab	oklab(52.14% 0.1533 0.0737)
OKLCH	oklch(52.14% 0.17 25.7)
XYZ	xyz(21.2258, 12.5735, 4.2144)
Luminance	0.1257 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73231 #31B6B7

analogous

#B73173 #B73231 #B77531

triadic

#B73231 #31B732 #3231B7

tetradic

#B73231 #73B731 #31B6B7 #7531B7

square

#B73231 #73B731 #31B6B7 #7531B7

split-complementary

#B73231 #31B775 #3173B7

monochromatic

#561817 #872524 #B73231 #D15554 #DE8584

Accessibility & contrast

On white

5.98

#B73231 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B73231 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73231

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73231	#FFFFFF	#000000	##FFFFFF
##B73231	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59512F

Deuteranopia (green-blind)

#7A6E2C

Tritanopia (blue-blind)

#C90033

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b73231;
/* rgb */ color: rgb(183, 50, 49);
/* oklch */ color: oklch(52.1% 0.170 25.7);

Tailwind

colors: {
  custom: {
    50: '#d57469',
    500: '#b73231',
    950: '#000000',
  },
}

SCSS

$custom: #b73231;
$custom-light: #d57469;
$custom-dark: #000000;

JSON

{
  "hex": "#b73231",
  "rgb": {
    "r": 183,
    "g": 50,
    "b": 49
  },
  "hsl": {
    "h": 0.448,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52136,
    "c": 0.17012,
    "h": 25.7
  },
  "luminance": 0.1257
}

Semantic roles & 50–950 ramp

primary

#B73231

secondary

#7CC7C8

accent

#E0E147

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73231

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

Preview Lab → · Contrast checker → · Palette generator →