#B72A3F#B72A3F

#B72A3F is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.6% C 0.176 H 18.2°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#B72A3F
RGB	rgb(183, 42, 63)
HSL	hsl(351, 63%, 44%)
HSV	hsv(351, 77%, 72%)
CMYK	cmyk(0%, 77%, 65.6%, 28.2%)
CIE-LAB	lab(41.35, 56.29, 23.13)
CIE-LCH	lch(41.35, 60.86, 22.34°)
OKLab	oklab(51.64% 0.1672 0.0551)
OKLCH	oklch(51.64% 0.176 18.2)
XYZ	xyz(21.2559, 12.0853, 5.9151)
Luminance	0.1208 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72A3F #2AB7A2

analogous

#B72A86 #B72A3F #B75C2A

triadic

#B72A3F #3FB72A #2A3FB7

tetradic

#B72A3F #86B72A #2AB7A2 #5C2AB7

square

#B72A3F #86B72A #2AB7A2 #5C2AB7

split-complementary

#B72A3F #2AB75C #2A86B7

monochromatic

#53131D #851F2E #B72A3F #D5495E #E17B8A

Accessibility & contrast

On white

6.15

#B72A3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B72A3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72A3F

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72A3F	#FFFFFF	#000000	##FFFFFF
##B72A3F	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534F3F

Deuteranopia (green-blind)

#766C3B

Tritanopia (blue-blind)

#C90033

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b72a3f;
/* rgb */ color: rgb(183, 42, 63);
/* oklch */ color: oklch(51.6% 0.176 18.2);

Tailwind

colors: {
  custom: {
    50: '#d47073',
    500: '#b72a3f',
    950: '#000000',
  },
}

SCSS

$custom: #b72a3f;
$custom-light: #d47073;
$custom-dark: #000000;

JSON

{
  "hex": "#b72a3f",
  "rgb": {
    "r": 183,
    "g": 42,
    "b": 63
  },
  "hsl": {
    "h": 351.064,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51638,
    "c": 0.17608,
    "h": 18.2
  },
  "luminance": 0.12082
}

Semantic roles & 50–950 ramp

primary

#B72A3F

secondary

#74C9BC

accent

#E6CD42

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160808

muted

#847B7B

Preview Lab

Preview with #B72A3F

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

Preview Lab → · Contrast checker → · Palette generator →