#B72C3A#B72C3A

#B72C3A is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.7% C 0.175 H 20.7°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#B72C3A
RGB	rgb(183, 44, 58)
HSL	hsl(354, 61%, 45%)
HSV	hsv(354, 76%, 72%)
CMYK	cmyk(0%, 76%, 68.3%, 28.2%)
CIE-LAB	lab(41.50, 55.37, 26.40)
CIE-LCH	lch(41.50, 61.35, 25.49°)
OKLab	oklab(51.72% 0.1633 0.0618)
OKLCH	oklch(51.72% 0.175 20.7)
XYZ	xyz(21.1952, 12.1774, 5.2366)
Luminance	0.1217 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72C3A #2CB7A9

analogous

#B72C80 #B72C3A #B7642C

triadic

#B72C3A #3AB72C #2C3AB7

tetradic

#B72C3A #80B72C #2CB7A9 #642CB7

square

#B72C3A #80B72C #2CB7A9 #642CB7

split-complementary

#B72C3A #2CB764 #2C80B7

monochromatic

#54141B #86202A #B72C3A #D44C5A #E07E87

Accessibility & contrast

On white

6.11

#B72C3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B72C3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72C3A

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72C3A	#FFFFFF	#000000	##FFFFFF
##B72C3A	1.00	6.11	3.43	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F39

Deuteranopia (green-blind)

#776D36

Tritanopia (blue-blind)

#C90033

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72c3a;
/* rgb */ color: rgb(183, 44, 58);
/* oklch */ color: oklch(51.7% 0.175 20.7);

Tailwind

colors: {
  custom: {
    50: '#d57170',
    500: '#b72c3a',
    950: '#000000',
  },
}

SCSS

$custom: #b72c3a;
$custom-light: #d57170;
$custom-dark: #000000;

JSON

{
  "hex": "#b72c3a",
  "rgb": {
    "r": 183,
    "g": 44,
    "b": 58
  },
  "hsl": {
    "h": 353.957,
    "s": 61.233,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51719,
    "c": 0.17456,
    "h": 20.7
  },
  "luminance": 0.12174
}

Semantic roles & 50–950 ramp

primary

#B72C3A

secondary

#76C8C0

accent

#E4D443

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160807

muted

#847B7A

Preview Lab

Preview with #B72C3A

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

Preview Lab → · Contrast checker → · Palette generator →