#B83F37#B83F37

#B83F37 is a mid, vivid red. Relative luminance 0.140; OKLCH L 53.8% C 0.158 H 27.4°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#B83F37
RGB	rgb(184, 63, 55)
HSL	hsl(4, 54%, 47%)
HSV	hsv(4, 70%, 72%)
CMYK	cmyk(0%, 65.8%, 70.1%, 27.8%)
CIE-LAB	lab(44.27, 48.32, 31.58)
CIE-LCH	lch(44.27, 57.72, 33.17°)
OKLab	oklab(53.81% 0.1401 0.0727)
OKLCH	oklch(53.81% 0.158 27.4)
XYZ	xyz(22.2366, 14.0244, 5.1498)
Luminance	0.1402 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B83F37 #37B0B8

analogous

#B83770 #B83F37 #B88037

triadic

#B83F37 #37B83F #3F37B8

tetradic

#B83F37 #70B837 #37B0B8 #8037B8

square

#B83F37 #70B837 #37B0B8 #8037B8

split-complementary

#B83F37 #37B880 #3770B8

monochromatic

#5A1F1B #892F29 #B83F37 #CF655D #DD928D

Accessibility & contrast

On white

5.52

#B83F37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#B83F37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83F37

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B83F37	#FFFFFF	#000000	##FFFFFF
##B83F37	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605835

Deuteranopia (green-blind)

#7E7233

Tritanopia (blue-blind)

#CA203E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #b83f37;
/* rgb */ color: rgb(184, 63, 55);
/* oklch */ color: oklch(53.8% 0.158 27.4);

Tailwind

colors: {
  custom: {
    50: '#d57a6e',
    500: '#b83f37',
    950: '#000000',
  },
}

SCSS

$custom: #b83f37;
$custom-light: #d57a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b83f37",
  "rgb": {
    "r": 184,
    "g": 63,
    "b": 55
  },
  "hsl": {
    "h": 3.721,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.53808,
    "c": 0.15788,
    "h": 27.4
  },
  "luminance": 0.14021
}

Semantic roles & 50–950 ramp

primary

#B83F37

secondary

#84C3C7

accent

#D4DD4A

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B83F37

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

Preview Lab → · Contrast checker → · Palette generator →