#D03738#D03738

#D03738 is a mid, vivid red. Relative luminance 0.164; OKLCH L 57.1% C 0.190 H 25.3°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#D03738
RGB	rgb(208, 55, 56)
HSL	hsl(360, 62%, 52%)
HSV	hsv(360, 74%, 82%)
CMYK	cmyk(0%, 73.6%, 73.1%, 18.4%)
CIE-LAB	lab(47.54, 59.21, 35.92)
CIE-LCH	lch(47.54, 69.25, 31.24°)
OKLab	oklab(57.06% 0.1718 0.0812)
OKLCH	oklch(57.06% 0.19 25.3)
XYZ	xyz(28.0956, 16.4321, 5.4330)
Luminance	0.1643 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D03738 #37D0CF

analogous

#D03785 #D03738 #D08337

triadic

#D03738 #38D037 #3738D0

tetradic

#D03738 #85D037 #37D0CF #8337D0

square

#D03738 #85D037 #37D0CF #8337D0

split-complementary

#D03738 #37D083 #3785D0

monochromatic

#721B1B #A32627 #D03738 #DC6969 #E79A9B

Accessibility & contrast

On white

4.90

#D03738 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#D03738 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #D03738

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D03738	#FFFFFF	#000000	##FFFFFF
##D03738	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645C36

Deuteranopia (green-blind)

#8A7D33

Tritanopia (blue-blind)

#E50039

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #d03738;
/* rgb */ color: rgb(208, 55, 56);
/* oklch */ color: oklch(57.1% 0.190 25.3);

Tailwind

colors: {
  custom: {
    50: '#e7796f',
    500: '#d03738',
    950: '#000000',
  },
}

SCSS

$custom: #d03738;
$custom-light: #e7796f;
$custom-dark: #000000;

JSON

{
  "hex": "#d03738",
  "rgb": {
    "r": 208,
    "g": 55,
    "b": 56
  },
  "hsl": {
    "h": 359.608,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57059,
    "c": 0.18998,
    "h": 25.3
  },
  "luminance": 0.16428
}

Semantic roles & 50–950 ramp

primary

#D03738

secondary

#90D3D3

accent

#E5E443

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D03738

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

Preview Lab → · Contrast checker → · Palette generator →