#B83537#B83537

#B83537 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.7% C 0.168 H 24.3°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#B83537
RGB	rgb(184, 53, 55)
HSL	hsl(359, 55%, 46%)
HSV	hsv(359, 71%, 72%)
CMYK	cmyk(0%, 71.2%, 70.1%, 27.8%)
CIE-LAB	lab(42.79, 52.35, 29.82)
CIE-LCH	lch(42.79, 60.25, 29.67°)
OKLab	oklab(52.7% 0.1529 0.0689)
OKLCH	oklch(52.7% 0.168 24.3)
XYZ	xyz(21.7322, 13.0156, 4.9816)
Luminance	0.1301 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B83537 #35B8B6

analogous

#B83579 #B83537 #B87535

triadic

#B83537 #37B835 #3537B8

tetradic

#B83537 #79B835 #35B8B6 #7535B8

square

#B83537 #79B835 #35B8B6 #7535B8

split-complementary

#B83537 #35B875 #3579B8

monochromatic

#591A1B #882729 #B83537 #D05B5C #DD8A8B

Accessibility & contrast

On white

5.83

#B83537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B83537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83537

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B83537	#FFFFFF	#000000	##FFFFFF
##B83537	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5336

Deuteranopia (green-blind)

#7B6F33

Tritanopia (blue-blind)

#CA0437

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b83537;
/* rgb */ color: rgb(184, 53, 55);
/* oklch */ color: oklch(52.7% 0.168 24.3);

Tailwind

colors: {
  custom: {
    50: '#d5756e',
    500: '#b83537',
    950: '#000000',
  },
}

SCSS

$custom: #b83537;
$custom-light: #d5756e;
$custom-dark: #000000;

JSON

{
  "hex": "#b83537",
  "rgb": {
    "r": 184,
    "g": 53,
    "b": 55
  },
  "hsl": {
    "h": 359.084,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52699,
    "c": 0.16766,
    "h": 24.3
  },
  "luminance": 0.13012
}

Semantic roles & 50–950 ramp

primary

#B83537

secondary

#81C7C6

accent

#DFDC49

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B83537

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

Preview Lab → · Contrast checker → · Palette generator →