#D03937#D03937

#D03937 is a mid, vivid red. Relative luminance 0.166; OKLCH L 57.2% C 0.188 H 26.1°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#D03937
RGB	rgb(208, 57, 55)
HSL	hsl(1, 62%, 52%)
HSV	hsv(1, 74%, 82%)
CMYK	cmyk(0%, 72.6%, 73.6%, 18.4%)
CIE-LAB	lab(47.77, 58.48, 36.76)
CIE-LCH	lch(47.77, 69.07, 32.15°)
OKLab	oklab(57.23% 0.1693 0.0828)
OKLCH	oklch(57.23% 0.188 26.1)
XYZ	xyz(28.1684, 16.6163, 5.3378)
Luminance	0.1661 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D03937 #37CED0

analogous

#D03782 #D03937 #D08637

triadic

#D03937 #37D039 #3937D0

tetradic

#D03937 #82D037 #37CED0 #8637D0

square

#D03937 #82D037 #37CED0 #8637D0

split-complementary

#D03937 #37D086 #3782D0

monochromatic

#721C1B #A32826 #D03937 #DC6A69 #E79B9A

Accessibility & contrast

On white

4.86

#D03937 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#D03937 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #D03937

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D03937	#FFFFFF	#000000	##FFFFFF
##D03937	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655C35

Deuteranopia (green-blind)

#8B7D32

Tritanopia (blue-blind)

#E5003A

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #d03937;
/* rgb */ color: rgb(208, 57, 55);
/* oklch */ color: oklch(57.2% 0.188 26.1);

Tailwind

colors: {
  custom: {
    50: '#e77a6e',
    500: '#d03937',
    950: '#000000',
  },
}

SCSS

$custom: #d03937;
$custom-light: #e77a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#d03937",
  "rgb": {
    "r": 208,
    "g": 57,
    "b": 55
  },
  "hsl": {
    "h": 0.784,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57231,
    "c": 0.1884,
    "h": 26.1
  },
  "luminance": 0.16612
}

Semantic roles & 50–950 ramp

primary

#D03937

secondary

#90D2D3

accent

#E3E543

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D03937

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

Preview Lab → · Contrast checker → · Palette generator →