#B72D37#B72D37

#B72D37 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.8% C 0.174 H 22.2°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#B72D37
RGB	rgb(183, 45, 55)
HSL	hsl(356, 61%, 45%)
HSV	hsv(356, 75%, 72%)
CMYK	cmyk(0%, 75.4%, 69.9%, 28.2%)
CIE-LAB	lab(41.57, 54.89, 28.32)
CIE-LCH	lch(41.57, 61.76, 27.29°)
OKLab	oklab(51.76% 0.1611 0.0656)
OKLCH	oklch(51.76% 0.174 22.2)
XYZ	xyz(21.1588, 12.2231, 4.8589)
Luminance	0.1222 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72D37 #2DB7AD

analogous

#B72D7C #B72D37 #B7682D

triadic

#B72D37 #37B72D #2D37B7

tetradic

#B72D37 #7CB72D #2DB7AD #682DB7

square

#B72D37 #7CB72D #2DB7AD #682DB7

split-complementary

#B72D37 #2DB768 #2D7CB7

monochromatic

#551519 #862128 #B72D37 #D34E57 #DF7F86

Accessibility & contrast

On white

6.10

#B72D37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B72D37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72D37

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72D37	#FFFFFF	#000000	##FFFFFF
##B72D37	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F36

Deuteranopia (green-blind)

#786D33

Tritanopia (blue-blind)

#C90032

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72d37;
/* rgb */ color: rgb(183, 45, 55);
/* oklch */ color: oklch(51.8% 0.174 22.2);

Tailwind

colors: {
  custom: {
    50: '#d5716e',
    500: '#b72d37',
    950: '#000000',
  },
}

SCSS

$custom: #b72d37;
$custom-light: #d5716e;
$custom-dark: #000000;

JSON

{
  "hex": "#b72d37",
  "rgb": {
    "r": 183,
    "g": 45,
    "b": 55
  },
  "hsl": {
    "h": 355.652,
    "s": 60.526,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51757,
    "c": 0.17389,
    "h": 22.2
  },
  "luminance": 0.1222
}

Semantic roles & 50–950 ramp

primary

#B72D37

secondary

#78C8C2

accent

#E4D844

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160807

muted

#847B7A

Preview Lab

Preview with #B72D37

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

Preview Lab → · Contrast checker → · Palette generator →