#B72B3C#B72B3C

#B72B3C is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.7% C 0.175 H 19.7°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#B72B3C
RGB	rgb(183, 43, 60)
HSL	hsl(353, 62%, 44%)
HSV	hsv(353, 77%, 72%)
CMYK	cmyk(0%, 76.5%, 67.2%, 28.2%)
CIE-LAB	lab(41.41, 55.81, 25.07)
CIE-LCH	lch(41.41, 61.18, 24.19°)
OKLab	oklab(51.67% 0.1651 0.0591)
OKLCH	oklch(51.67% 0.175 19.7)
XYZ	xyz(21.2103, 12.1245, 5.4975)
Luminance	0.1212 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72B3C #2BB7A6

analogous

#B72B82 #B72B3C #B7602B

triadic

#B72B3C #3CB72B #2B3CB7

tetradic

#B72B3C #82B72B #2BB7A6 #602BB7

square

#B72B3C #82B72B #2BB7A6 #602BB7

split-complementary

#B72B3C #2BB760 #2B82B7

monochromatic

#54141C #851F2C #B72B3C #D54B5B #E07C88

Accessibility & contrast

On white

6.13

#B72B3C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B72B3C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72B3C

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72B3C	#FFFFFF	#000000	##FFFFFF
##B72B3C	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544F3C

Deuteranopia (green-blind)

#776C38

Tritanopia (blue-blind)

#C90033

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72b3c;
/* rgb */ color: rgb(183, 43, 60);
/* oklch */ color: oklch(51.7% 0.175 19.7);

Tailwind

colors: {
  custom: {
    50: '#d47171',
    500: '#b72b3c',
    950: '#000000',
  },
}

SCSS

$custom: #b72b3c;
$custom-light: #d47171;
$custom-dark: #000000;

JSON

{
  "hex": "#b72b3c",
  "rgb": {
    "r": 183,
    "g": 43,
    "b": 60
  },
  "hsl": {
    "h": 352.714,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51668,
    "c": 0.17532,
    "h": 19.7
  },
  "luminance": 0.12121
}

Semantic roles & 50–950 ramp

primary

#B72B3C

secondary

#75C9BE

accent

#E5D143

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160807

muted

#847B7A

Preview Lab

Preview with #B72B3C

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

Preview Lab → · Contrast checker → · Palette generator →