#D3373B#D3373B

#D3373B is a mid, vivid red. Relative luminance 0.169; OKLCH L 57.6% C 0.193 H 24.4°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#D3373B
RGB	rgb(211, 55, 59)
HSL	hsl(358, 64%, 52%)
HSV	hsv(358, 74%, 83%)
CMYK	cmyk(0%, 73.9%, 72%, 17.3%)
CIE-LAB	lab(48.14, 60.25, 35.02)
CIE-LCH	lch(48.14, 69.69, 30.17°)
OKLab	oklab(57.62% 0.1753 0.0797)
OKLCH	oklch(57.62% 0.193 24.4)
XYZ	xyz(29.0229, 16.9015, 5.8709)
Luminance	0.1690 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D3373B #37D3CF

analogous

#D33789 #D3373B #D38137

triadic

#D3373B #3BD337 #373BD3

tetradic

#D3373B #89D337 #37D3CF #8137D3

square

#D3373B #89D337 #37D3CF #8137D3

split-complementary

#D3373B #37D381 #3789D3

monochromatic

#761A1C #A82528 #D3373B #DE696C #E99B9D

Accessibility & contrast

On white

4.80

#D3373B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#D3373B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #D3373B

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D3373B	#FFFFFF	#000000	##FFFFFF
##D3373B	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655D3A

Deuteranopia (green-blind)

#8C7E36

Tritanopia (blue-blind)

#E8003A

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #d3373b;
/* rgb */ color: rgb(211, 55, 59);
/* oklch */ color: oklch(57.6% 0.193 24.4);

Tailwind

colors: {
  custom: {
    50: '#e97a71',
    500: '#d3373b',
    950: '#000000',
  },
}

SCSS

$custom: #d3373b;
$custom-light: #e97a71;
$custom-dark: #000000;

JSON

{
  "hex": "#d3373b",
  "rgb": {
    "r": 211,
    "g": 55,
    "b": 59
  },
  "hsl": {
    "h": 358.462,
    "s": 63.934,
    "l": 52.157
  },
  "oklch": {
    "l": 0.57619,
    "c": 0.19258,
    "h": 24.4
  },
  "luminance": 0.16897
}

Semantic roles & 50–950 ramp

primary

#D3373B

secondary

#91D5D3

accent

#E7E341

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D3373B

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

Preview Lab → · Contrast checker → · Palette generator →