#B83337#B83337

#B83337 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.5% C 0.170 H 23.7°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B83337
RGB	rgb(184, 51, 55)
HSL	hsl(358, 57%, 46%)
HSV	hsv(358, 72%, 72%)
CMYK	cmyk(0%, 72.3%, 70.1%, 27.8%)
CIE-LAB	lab(42.52, 53.10, 29.50)
CIE-LCH	lch(42.52, 60.74, 29.06°)
OKLab	oklab(52.5% 0.1552 0.0682)
OKLCH	oklch(52.5% 0.17 23.7)
XYZ	xyz(21.6430, 12.8371, 4.9519)
Luminance	0.1283 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B83337 #33B8B4

analogous

#B83379 #B83337 #B87133

triadic

#B83337 #37B833 #3337B8

tetradic

#B83337 #79B833 #33B8B4 #7133B8

square

#B83337 #79B833 #33B8B4 #7133B8

split-complementary

#B83337 #33B871 #3379B8

monochromatic

#58181A #882629 #B83337 #D1585B #DE888A

Accessibility & contrast

On white

5.89

#B83337 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B83337 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83337

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B83337	#FFFFFF	#000000	##FFFFFF
##B83337	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595236

Deuteranopia (green-blind)

#7A6F33

Tritanopia (blue-blind)

#CA0036

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b83337;
/* rgb */ color: rgb(184, 51, 55);
/* oklch */ color: oklch(52.5% 0.170 23.7);

Tailwind

colors: {
  custom: {
    50: '#d5746e',
    500: '#b83337',
    950: '#000000',
  },
}

SCSS

$custom: #b83337;
$custom-light: #d5746e;
$custom-dark: #000000;

JSON

{
  "hex": "#b83337",
  "rgb": {
    "r": 184,
    "g": 51,
    "b": 55
  },
  "hsl": {
    "h": 358.195,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52498,
    "c": 0.16953,
    "h": 23.7
  },
  "luminance": 0.12834
}

Semantic roles & 50–950 ramp

primary

#B83337

secondary

#7FC8C6

accent

#E0DB48

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B83337

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

Preview Lab → · Contrast checker → · Palette generator →