#B83037#B83037

#B83037 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.2% C 0.172 H 22.9°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#B83037
RGB	rgb(184, 48, 55)
HSL	hsl(357, 59%, 45%)
HSV	hsv(357, 74%, 72%)
CMYK	cmyk(0%, 73.9%, 70.1%, 27.8%)
CIE-LAB	lab(42.13, 54.17, 29.04)
CIE-LCH	lch(42.13, 61.46, 28.19°)
OKLab	oklab(52.21% 0.1586 0.0671)
OKLCH	oklch(52.21% 0.172 22.9)
XYZ	xyz(21.5161, 12.5833, 4.9096)
Luminance	0.1258 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B83037 #30B8B1

analogous

#B8307B #B83037 #B86D30

triadic

#B83037 #37B830 #3037B8

tetradic

#B83037 #7BB830 #30B8B1 #6D30B8

square

#B83037 #7BB830 #30B8B1 #6D30B8

split-complementary

#B83037 #30B86D #307BB8

monochromatic

#57171A #872328 #B83037 #D2535A #DF8488

Accessibility & contrast

On white

5.97

#B83037 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B83037 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B83037

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B83037	#FFFFFF	#000000	##FFFFFF
##B83037	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575136

Deuteranopia (green-blind)

#796E33

Tritanopia (blue-blind)

#CA0034

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b83037;
/* rgb */ color: rgb(184, 48, 55);
/* oklch */ color: oklch(52.2% 0.172 22.9);

Tailwind

colors: {
  custom: {
    50: '#d5736e',
    500: '#b83037',
    950: '#000000',
  },
}

SCSS

$custom: #b83037;
$custom-light: #d5736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b83037",
  "rgb": {
    "r": 184,
    "g": 48,
    "b": 55
  },
  "hsl": {
    "h": 356.912,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52209,
    "c": 0.17226,
    "h": 22.9
  },
  "luminance": 0.1258
}

Semantic roles & 50–950 ramp

primary

#B83037

secondary

#7CC8C4

accent

#E2DA46

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B83037

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

Preview Lab → · Contrast checker → · Palette generator →