#B72B38#B72B38

#B72B38 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.6% C 0.176 H 21.3°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#B72B38
RGB	rgb(183, 43, 56)
HSL	hsl(354, 62%, 44%)
HSV	hsv(354, 77%, 72%)
CMYK	cmyk(0%, 76.5%, 69.4%, 28.2%)
CIE-LAB	lab(41.35, 55.60, 27.44)
CIE-LCH	lch(41.35, 62.00, 26.27°)
OKLab	oklab(51.6% 0.1635 0.0638)
OKLCH	oklch(51.6% 0.176 21.3)
XYZ	xyz(21.1085, 12.0838, 4.9616)
Luminance	0.1208 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72B38 #2BB7AA

analogous

#B72B7E #B72B38 #B7642B

triadic

#B72B38 #38B72B #2B38B7

tetradic

#B72B38 #7EB72B #2BB7AA #642BB7

square

#B72B38 #7EB72B #2BB7AA #642BB7

split-complementary

#B72B38 #2BB764 #2B7EB7

monochromatic

#54141A #851F29 #B72B38 #D54B57 #E07C85

Accessibility & contrast

On white

6.15

#B72B38 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B72B38 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72B38

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72B38	#FFFFFF	#000000	##FFFFFF
##B72B38	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)

#544E37

Deuteranopia (green-blind)

#776C34

Tritanopia (blue-blind)

#C90031

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b72b38;
/* rgb */ color: rgb(183, 43, 56);
/* oklch */ color: oklch(51.6% 0.176 21.3);

Tailwind

colors: {
  custom: {
    50: '#d5716e',
    500: '#b72b38',
    950: '#000000',
  },
}

SCSS

$custom: #b72b38;
$custom-light: #d5716e;
$custom-dark: #000000;

JSON

{
  "hex": "#b72b38",
  "rgb": {
    "r": 183,
    "g": 43,
    "b": 56
  },
  "hsl": {
    "h": 354.429,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51599,
    "c": 0.17553,
    "h": 21.3
  },
  "luminance": 0.12081
}

Semantic roles & 50–950 ramp

primary

#B72B38

secondary

#75C9C1

accent

#E5D643

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160807

muted

#847B7A

Preview Lab

Preview with #B72B38

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

Preview Lab → · Contrast checker → · Palette generator →