#B72B3F#B72B3F

#B72B3F is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.7% C 0.175 H 18.4°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#B72B3F
RGB	rgb(183, 43, 63)
HSL	hsl(351, 62%, 44%)
HSV	hsv(351, 77%, 72%)
CMYK	cmyk(0%, 76.5%, 65.6%, 28.2%)
CIE-LAB	lab(41.46, 55.97, 23.28)
CIE-LCH	lch(41.46, 60.62, 22.58°)
OKLab	oklab(51.72% 0.1662 0.0554)
OKLCH	oklch(51.72% 0.175 18.4)
XYZ	xyz(21.2918, 12.1571, 5.9271)
Luminance	0.1215 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72B3F #2BB7A3

analogous

#B72B85 #B72B3F #B75D2B

triadic

#B72B3F #3FB72B #2B3FB7

tetradic

#B72B3F #85B72B #2BB7A3 #5D2BB7

square

#B72B3F #85B72B #2BB7A3 #5D2BB7

split-complementary

#B72B3F #2BB75D #2B85B7

monochromatic

#54141D #851F2E #B72B3F #D54B5E #E07C8A

Accessibility & contrast

On white

6.12

#B72B3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B72B3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72B3F

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72B3F	#FFFFFF	#000000	##FFFFFF
##B72B3F	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534F3F

Deuteranopia (green-blind)

#776C3B

Tritanopia (blue-blind)

#C90034

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72b3f;
/* rgb */ color: rgb(183, 43, 63);
/* oklch */ color: oklch(51.7% 0.175 18.4);

Tailwind

colors: {
  custom: {
    50: '#d47173',
    500: '#b72b3f',
    950: '#000000',
  },
}

SCSS

$custom: #b72b3f;
$custom-light: #d47173;
$custom-dark: #000000;

JSON

{
  "hex": "#b72b3f",
  "rgb": {
    "r": 183,
    "g": 43,
    "b": 63
  },
  "hsl": {
    "h": 351.429,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51722,
    "c": 0.17522,
    "h": 18.4
  },
  "luminance": 0.12154
}

Semantic roles & 50–950 ramp

primary

#B72B3F

secondary

#75C9BD

accent

#E5CE43

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160808

muted

#847B7B

Preview Lab

Preview with #B72B3F

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

Preview Lab → · Contrast checker → · Palette generator →