#B72B3A#B72B3A

#B72B3A is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.6% C 0.175 H 20.5°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#B72B3A
RGB	rgb(183, 43, 58)
HSL	hsl(354, 62%, 44%)
HSV	hsv(354, 77%, 72%)
CMYK	cmyk(0%, 76.5%, 68.3%, 28.2%)
CIE-LAB	lab(41.38, 55.70, 26.26)
CIE-LCH	lch(41.38, 61.58, 25.24°)
OKLab	oklab(51.63% 0.1643 0.0615)
OKLCH	oklch(51.63% 0.175 20.5)
XYZ	xyz(21.1584, 12.1038, 5.2243)
Luminance	0.1210 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72B3A #2BB7A8

analogous

#B72B80 #B72B3A #B7622B

triadic

#B72B3A #3AB72B #2B3AB7

tetradic

#B72B3A #80B72B #2BB7A8 #622BB7

square

#B72B3A #80B72B #2BB7A8 #622BB7

split-complementary

#B72B3A #2BB762 #2B80B7

monochromatic

#54141B #851F2A #B72B3A #D54B59 #E07C87

Accessibility & contrast

On white

6.14

#B72B3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B72B3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72B3A

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72B3A	#FFFFFF	#000000	##FFFFFF
##B72B3A	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544F39

Deuteranopia (green-blind)

#776C36

Tritanopia (blue-blind)

#C90032

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72b3a;
/* rgb */ color: rgb(183, 43, 58);
/* oklch */ color: oklch(51.6% 0.175 20.5);

Tailwind

colors: {
  custom: {
    50: '#d57170',
    500: '#b72b3a',
    950: '#000000',
  },
}

SCSS

$custom: #b72b3a;
$custom-light: #d57170;
$custom-dark: #000000;

JSON

{
  "hex": "#b72b3a",
  "rgb": {
    "r": 183,
    "g": 43,
    "b": 58
  },
  "hsl": {
    "h": 353.571,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51633,
    "c": 0.17541,
    "h": 20.5
  },
  "luminance": 0.12101
}

Semantic roles & 50–950 ramp

primary

#B72B3A

secondary

#75C9C0

accent

#E5D443

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160807

muted

#847B7A

Preview Lab

Preview with #B72B3A

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

Preview Lab → · Contrast checker → · Palette generator →