#DA3737#DA3737

#DA3737 is a mid, vivid red. Relative luminance 0.179; OKLCH L 58.8% C 0.200 H 25.9°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#DA3737
RGB	rgb(218, 55, 55)
HSL	hsl(0, 69%, 54%)
HSV	hsv(0, 75%, 85%)
CMYK	cmyk(0%, 74.8%, 74.8%, 14.5%)
CIE-LAB	lab(49.40, 62.19, 39.09)
CIE-LCH	lch(49.40, 73.45, 32.15°)
OKLab	oklab(58.78% 0.1798 0.0872)
OKLCH	oklch(58.78% 0.2 25.9)
XYZ	xyz(30.9728, 17.9185, 5.4414)
Luminance	0.1791 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#DA3737 #37DADA

analogous

#DA3788 #DA3737 #DA8837

triadic

#DA3737 #37DA37 #3737DA

tetradic

#DA3737 #88DA37 #37DADA #8837DA

square

#DA3737 #88DA37 #37DADA #8837DA

split-complementary

#DA3737 #37DA88 #3788DA

monochromatic

#7F1818 #B32121 #DA3737 #E46B6B #ED9E9E

Accessibility & contrast

On white

4.58

#DA3737 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#DA3737 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #DA3737

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##DA3737	#FFFFFF	#000000	##000000
##DA3737	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#685F35

Deuteranopia (green-blind)

#918231

Tritanopia (blue-blind)

#F00039

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #da3737;
/* rgb */ color: rgb(218, 55, 55);
/* oklch */ color: oklch(58.8% 0.200 25.9);

Tailwind

colors: {
  custom: {
    50: '#ef7b6e',
    500: '#da3737',
    950: '#000000',
  },
}

SCSS

$custom: #da3737;
$custom-light: #ef7b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#da3737",
  "rgb": {
    "r": 218,
    "g": 55,
    "b": 55
  },
  "hsl": {
    "h": 0,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58778,
    "c": 0.19982,
    "h": 25.9
  },
  "luminance": 0.17914
}

Semantic roles & 50–950 ramp

primary

#DA3737

secondary

#93D9D9

accent

#ECEC3C

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #DA3737

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

Preview Lab → · Contrast checker → · Palette generator →