#B43237#B43237

#B43237 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.7% C 0.166 H 23.2°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#B43237
RGB	rgb(180, 50, 55)
HSL	hsl(358, 57%, 45%)
HSV	hsv(358, 72%, 71%)
CMYK	cmyk(0%, 72.2%, 69.4%, 29.4%)
CIE-LAB	lab(41.63, 52.19, 28.26)
CIE-LCH	lch(41.63, 59.35, 28.43°)
OKLab	oklab(51.7% 0.1529 0.0656)
OKLCH	oklch(51.7% 0.166 23.2)
XYZ	xyz(20.6548, 12.2634, 4.8932)
Luminance	0.1226 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43237 #32B4AF

analogous

#B43278 #B43237 #B46E32

triadic

#B43237 #37B432 #3237B4

tetradic

#B43237 #78B432 #32B4AF #6E32B4

square

#B43237 #78B432 #32B4AF #6E32B4

split-complementary

#B43237 #32B46E #3278B4

monochromatic

#54171A #842528 #B43237 #CF5459 #DD8487

Accessibility & contrast

On white

6.08

#B43237 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#B43237 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43237

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43237	#FFFFFF	#000000	##FFFFFF
##B43237	1.00	6.08	3.45	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575036

Deuteranopia (green-blind)

#786C33

Tritanopia (blue-blind)

#C60035

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b43237;
/* rgb */ color: rgb(180, 50, 55);
/* oklch */ color: oklch(51.7% 0.166 23.2);

Tailwind

colors: {
  custom: {
    50: '#d2736e',
    500: '#b43237',
    950: '#000000',
  },
}

SCSS

$custom: #b43237;
$custom-light: #d2736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b43237",
  "rgb": {
    "r": 180,
    "g": 50,
    "b": 55
  },
  "hsl": {
    "h": 357.692,
    "s": 56.522,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51701,
    "c": 0.16635,
    "h": 23.2
  },
  "luminance": 0.1226
}

Semantic roles & 50–950 ramp

primary

#B43237

secondary

#7CC6C3

accent

#E0DA48

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B43237

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

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