#B72C3F#B72C3F

#B72C3F is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.8% C 0.174 H 18.7°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#B72C3F
RGB	rgb(183, 44, 63)
HSL	hsl(352, 61%, 45%)
HSV	hsv(352, 76%, 72%)
CMYK	cmyk(0%, 76%, 65.6%, 28.2%)
CIE-LAB	lab(41.58, 55.65, 23.43)
CIE-LCH	lch(41.58, 60.38, 22.83°)
OKLab	oklab(51.81% 0.1652 0.0558)
OKLCH	oklch(51.81% 0.174 18.7)
XYZ	xyz(21.3286, 12.2307, 5.9394)
Luminance	0.1223 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72C3F #2CB7A4

analogous

#B72C84 #B72C3F #B75F2C

triadic

#B72C3F #3FB72C #2C3FB7

tetradic

#B72C3F #84B72C #2CB7A4 #5F2CB7

square

#B72C3F #84B72C #2CB7A4 #5F2CB7

split-complementary

#B72C3F #2CB75F #2C84B7

monochromatic

#54141D #86202E #B72C3F #D44C5F #E07E8B

Accessibility & contrast

On white

6.09

#B72C3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#B72C3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72C3F

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72C3F	#FFFFFF	#000000	##FFFFFF
##B72C3F	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544F3F

Deuteranopia (green-blind)

#776D3B

Tritanopia (blue-blind)

#C90034

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72c3f;
/* rgb */ color: rgb(183, 44, 63);
/* oklch */ color: oklch(51.8% 0.174 18.7);

Tailwind

colors: {
  custom: {
    50: '#d47173',
    500: '#b72c3f',
    950: '#000000',
  },
}

SCSS

$custom: #b72c3f;
$custom-light: #d47173;
$custom-dark: #000000;

JSON

{
  "hex": "#b72c3f",
  "rgb": {
    "r": 183,
    "g": 44,
    "b": 63
  },
  "hsl": {
    "h": 351.799,
    "s": 61.233,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51808,
    "c": 0.17434,
    "h": 18.7
  },
  "luminance": 0.12228
}

Semantic roles & 50–950 ramp

primary

#B72C3F

secondary

#76C8BD

accent

#E4CE43

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160808

muted

#847B7B

Preview Lab

Preview with #B72C3F

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

Preview Lab → · Contrast checker → · Palette generator →