#DA3739#DA3739

#DA3739 is a mid, vivid red. Relative luminance 0.179; OKLCH L 58.8% C 0.200 H 25.3°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#DA3739
RGB	rgb(218, 55, 57)
HSL	hsl(359, 69%, 54%)
HSV	hsv(359, 75%, 85%)
CMYK	cmyk(0%, 74.8%, 73.9%, 14.5%)
CIE-LAB	lab(49.42, 62.27, 37.98)
CIE-LCH	lch(49.42, 72.94, 31.38°)
OKLab	oklab(58.8% 0.1805 0.0853)
OKLCH	oklch(58.8% 0.2 25.3)
XYZ	xyz(31.0218, 17.9380, 5.6991)
Luminance	0.1793 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#DA3739 #37DAD8

analogous

#DA378A #DA3739 #DA8637

triadic

#DA3739 #39DA37 #3739DA

tetradic

#DA3739 #8ADA37 #37DAD8 #8637DA

square

#DA3739 #8ADA37 #37DAD8 #8637DA

split-complementary

#DA3739 #37DA86 #378ADA

monochromatic

#7F1819 #B32123 #DA3739 #E46B6C #ED9E9F

Accessibility & contrast

On white

4.58

#DA3739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#DA3739 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #DA3739

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##DA3739	#FFFFFF	#000000	##000000
##DA3739	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#685F37

Deuteranopia (green-blind)

#918233

Tritanopia (blue-blind)

#F0003A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #da3739;
/* rgb */ color: rgb(218, 55, 57);
/* oklch */ color: oklch(58.8% 0.200 25.3);

Tailwind

colors: {
  custom: {
    50: '#ef7b70',
    500: '#da3739',
    950: '#000000',
  },
}

SCSS

$custom: #da3739;
$custom-light: #ef7b70;
$custom-dark: #000000;

JSON

{
  "hex": "#da3739",
  "rgb": {
    "r": 218,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 359.264,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58803,
    "c": 0.19959,
    "h": 25.3
  },
  "luminance": 0.17933
}

Semantic roles & 50–950 ramp

primary

#DA3739

secondary

#93D9D8

accent

#ECE93C

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #DA3739

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

Preview Lab → · Contrast checker → · Palette generator →