#B83B37#B83B37

#B83B37 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.3% C 0.162 H 26.1°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#B83B37
RGB	rgb(184, 59, 55)
HSL	hsl(2, 54%, 47%)
HSV	hsv(2, 70%, 72%)
CMYK	cmyk(0%, 67.9%, 70.1%, 27.8%)
CIE-LAB	lab(43.65, 49.99, 30.85)
CIE-LCH	lch(43.65, 58.74, 31.68°)
OKLab	oklab(53.34% 0.1454 0.0711)
OKLCH	oklch(53.34% 0.162 26.1)
XYZ	xyz(22.0231, 13.5973, 5.0786)
Luminance	0.1359 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B83B37 #37B4B8

analogous

#B83774 #B83B37 #B87B37

triadic

#B83B37 #37B83B #3B37B8

tetradic

#B83B37 #74B837 #37B4B8 #7B37B8

square

#B83B37 #74B837 #37B4B8 #7B37B8

split-complementary

#B83B37 #37B87B #3774B8

monochromatic

#5A1D1B #892C29 #B83B37 #CF615D #DD8F8D

Accessibility & contrast

On white

5.65

#B83B37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B83B37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83B37

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B83B37	#FFFFFF	#000000	##FFFFFF
##B83B37	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5635

Deuteranopia (green-blind)

#7D7133

Tritanopia (blue-blind)

#CA173B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b83b37;
/* rgb */ color: rgb(184, 59, 55);
/* oklch */ color: oklch(53.3% 0.162 26.1);

Tailwind

colors: {
  custom: {
    50: '#d5786e',
    500: '#b83b37',
    950: '#000000',
  },
}

SCSS

$custom: #b83b37;
$custom-light: #d5786e;
$custom-dark: #000000;

JSON

{
  "hex": "#b83b37",
  "rgb": {
    "r": 184,
    "g": 59,
    "b": 55
  },
  "hsl": {
    "h": 1.86,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.53344,
    "c": 0.16187,
    "h": 26.1
  },
  "luminance": 0.13594
}

Semantic roles & 50–950 ramp

primary

#B83B37

secondary

#84C5C7

accent

#D9DD4A

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B83B37

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

Preview Lab → · Contrast checker → · Palette generator →