#D63739#D63739

#D63739 is a mid, vivid red. Relative luminance 0.173; OKLCH L 58.1% C 0.196 H 25.2°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#D63739
RGB	rgb(214, 55, 57)
HSL	hsl(359, 66%, 53%)
HSV	hsv(359, 74%, 84%)
CMYK	cmyk(0%, 74.3%, 73.4%, 16.1%)
CIE-LAB	lab(48.67, 61.07, 36.93)
CIE-LCH	lch(48.67, 71.37, 31.16°)
OKLab	oklab(58.11% 0.1771 0.0832)
OKLCH	oklch(58.11% 0.196 25.2)
XYZ	xyz(29.8397, 17.3285, 5.6436)
Luminance	0.1732 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D63739 #37D6D4

analogous

#D63789 #D63739 #D68437

triadic

#D63739 #39D637 #3739D6

tetradic

#D63739 #89D637 #37D6D4 #8437D6

square

#D63739 #89D637 #37D6D4 #8437D6

split-complementary

#D63739 #37D684 #3789D6

monochromatic

#7A191A #AC2325 #D63739 #E06A6B #EB9D9E

Accessibility & contrast

On white

4.70

#D63739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#D63739 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #D63739

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D63739	#FFFFFF	#000000	##FFFFFF
##D63739	1.00	4.70	4.46	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665E37

Deuteranopia (green-blind)

#8E8033

Tritanopia (blue-blind)

#EB003A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #d63739;
/* rgb */ color: rgb(214, 55, 57);
/* oklch */ color: oklch(58.1% 0.196 25.2);

Tailwind

colors: {
  custom: {
    50: '#ec7a70',
    500: '#d63739',
    950: '#000000',
  },
}

SCSS

$custom: #d63739;
$custom-light: #ec7a70;
$custom-dark: #000000;

JSON

{
  "hex": "#d63739",
  "rgb": {
    "r": 214,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 359.245,
    "s": 65.975,
    "l": 52.745
  },
  "oklch": {
    "l": 0.58111,
    "c": 0.19572,
    "h": 25.2
  },
  "luminance": 0.17324
}

Semantic roles & 50–950 ramp

primary

#D63739

secondary

#92D7D6

accent

#E9E73F

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D63739

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

Preview Lab → · Contrast checker → · Palette generator →