#D83537#D83537

#D83537 is a mid, vivid red. Relative luminance 0.174; OKLCH L 58.3% C 0.199 H 25.4°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#D83537
RGB	rgb(216, 53, 55)
HSL	hsl(359, 68%, 53%)
HSV	hsv(359, 75%, 85%)
CMYK	cmyk(0%, 75.5%, 74.5%, 15.3%)
CIE-LAB	lab(48.79, 62.23, 38.31)
CIE-LCH	lch(48.79, 73.08, 31.62°)
OKLab	oklab(58.26% 0.1802 0.0857)
OKLCH	oklch(58.26% 0.199 25.4)
XYZ	xyz(30.2851, 17.4257, 5.3825)
Luminance	0.1742 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D83537 #35D8D6

analogous

#D83588 #D83537 #D88535

triadic

#D83537 #37D835 #3537D8

tetradic

#D83537 #88D835 #35D8D6 #8535D8

square

#D83537 #88D835 #35D8D6 #8535D8

split-complementary

#D83537 #35D885 #3588D8

monochromatic

#7B1819 #AE2223 #D83537 #E2686A #EC9C9D

Accessibility & contrast

On white

4.68

#D83537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#D83537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #D83537

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D83537	#FFFFFF	#000000	##FFFFFF
##D83537	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665D35

Deuteranopia (green-blind)

#8F8131

Tritanopia (blue-blind)

#EE0038

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #d83537;
/* rgb */ color: rgb(216, 53, 55);
/* oklch */ color: oklch(58.3% 0.199 25.4);

Tailwind

colors: {
  custom: {
    50: '#ed796e',
    500: '#d83537',
    950: '#000000',
  },
}

SCSS

$custom: #d83537;
$custom-light: #ed796e;
$custom-dark: #000000;

JSON

{
  "hex": "#d83537",
  "rgb": {
    "r": 216,
    "g": 53,
    "b": 55
  },
  "hsl": {
    "h": 359.264,
    "s": 67.635,
    "l": 52.745
  },
  "oklch": {
    "l": 0.5826,
    "c": 0.19948,
    "h": 25.4
  },
  "luminance": 0.17421
}

Semantic roles & 50–950 ramp

primary

#D83537

secondary

#91D8D7

accent

#EBE83D

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D83537

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

Preview Lab → · Contrast checker → · Palette generator →