#B72A3B#B72A3B

#B72A3B is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.6% C 0.176 H 19.9°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#B72A3B
RGB	rgb(183, 42, 59)
HSL	hsl(353, 63%, 44%)
HSV	hsv(353, 77%, 72%)
CMYK	cmyk(0%, 77%, 67.8%, 28.2%)
CIE-LAB	lab(41.28, 56.07, 25.52)
CIE-LCH	lch(41.28, 61.61, 24.47°)
OKLab	oklab(51.57% 0.1657 0.06)
OKLCH	oklch(51.57% 0.176 19.9)
XYZ	xyz(21.1482, 12.0422, 5.3476)
Luminance	0.1204 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72A3B #2AB7A6

analogous

#B72A82 #B72A3B #B7602A

triadic

#B72A3B #3BB72A #2A3BB7

tetradic

#B72A3B #82B72A #2AB7A6 #602AB7

square

#B72A3B #82B72A #2AB7A6 #602AB7

split-complementary

#B72A3B #2AB760 #2A82B7

monochromatic

#53131B #851F2B #B72A3B #D5495A #E17B87

Accessibility & contrast

On white

6.16

#B72A3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B72A3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72A3B

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72A3B	#FFFFFF	#000000	##FFFFFF
##B72A3B	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534E3B

Deuteranopia (green-blind)

#776C37

Tritanopia (blue-blind)

#C90032

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b72a3b;
/* rgb */ color: rgb(183, 42, 59);
/* oklch */ color: oklch(51.6% 0.176 19.9);

Tailwind

colors: {
  custom: {
    50: '#d57070',
    500: '#b72a3b',
    950: '#000000',
  },
}

SCSS

$custom: #b72a3b;
$custom-light: #d57070;
$custom-dark: #000000;

JSON

{
  "hex": "#b72a3b",
  "rgb": {
    "r": 183,
    "g": 42,
    "b": 59
  },
  "hsl": {
    "h": 352.766,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51566,
    "c": 0.17621,
    "h": 19.9
  },
  "luminance": 0.12039
}

Semantic roles & 50–950 ramp

primary

#B72A3B

secondary

#74C9BF

accent

#E6D242

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160807

muted

#847B7A

Preview Lab

Preview with #B72A3B

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

Preview Lab → · Contrast checker → · Palette generator →