#B83137#B83137

#B83137 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.3% C 0.171 H 23.2°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#B83137
RGB	rgb(184, 49, 55)
HSL	hsl(357, 58%, 46%)
HSV	hsv(357, 73%, 72%)
CMYK	cmyk(0%, 73.4%, 70.1%, 27.8%)
CIE-LAB	lab(42.26, 53.82, 29.19)
CIE-LCH	lch(42.26, 61.23, 28.47°)
OKLab	oklab(52.3% 0.1575 0.0675)
OKLCH	oklch(52.3% 0.171 23.2)
XYZ	xyz(21.5575, 12.6661, 4.9234)
Luminance	0.1266 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B83137 #31B8B2

analogous

#B8317B #B83137 #B86E31

triadic

#B83137 #37B831 #3137B8

tetradic

#B83137 #7BB831 #31B8B2 #6E31B8

square

#B83137 #7BB831 #31B8B2 #6E31B8

split-complementary

#B83137 #31B86E #317BB8

monochromatic

#57171A #882429 #B83137 #D2555A #DE8589

Accessibility & contrast

On white

5.94

#B83137 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B83137 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83137

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B83137	#FFFFFF	#000000	##FFFFFF
##B83137	1.00	5.94	3.53	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585136

Deuteranopia (green-blind)

#7A6E33

Tritanopia (blue-blind)

#CA0035

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b83137;
/* rgb */ color: rgb(184, 49, 55);
/* oklch */ color: oklch(52.3% 0.171 23.2);

Tailwind

colors: {
  custom: {
    50: '#d5736e',
    500: '#b83137',
    950: '#000000',
  },
}

SCSS

$custom: #b83137;
$custom-light: #d5736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b83137",
  "rgb": {
    "r": 184,
    "g": 49,
    "b": 55
  },
  "hsl": {
    "h": 357.333,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52303,
    "c": 0.17136,
    "h": 23.2
  },
  "luminance": 0.12663
}

Semantic roles & 50–950 ramp

primary

#B83137

secondary

#7DC8C5

accent

#E1DA47

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B83137

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

Preview Lab → · Contrast checker → · Palette generator →