#D43E37#D43E37

#D43E37 is a mid, vivid red. Relative luminance 0.177; OKLCH L 58.4% C 0.188 H 27.3°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#D43E37
RGB	rgb(212, 62, 55)
HSL	hsl(3, 65%, 52%)
HSV	hsv(3, 74%, 83%)
CMYK	cmyk(0%, 70.8%, 74.1%, 16.9%)
CIE-LAB	lab(49.16, 57.93, 38.51)
CIE-LCH	lch(49.16, 69.57, 33.61°)
OKLab	oklab(58.4% 0.1671 0.0863)
OKLCH	oklch(58.4% 0.188 27.3)
XYZ	xyz(29.5670, 17.7226, 5.4776)
Luminance	0.1772 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D43E37 #37CDD4

analogous

#D4377F #D43E37 #D48C37

triadic

#D43E37 #37D43E #3E37D4

tetradic

#D43E37 #7FD437 #37CDD4 #8C37D4

square

#D43E37 #7FD437 #37CDD4 #8C37D4

split-complementary

#D43E37 #37D48C #377FD4

monochromatic

#771E1A #A92A24 #D43E37 #DF6F69 #EA9F9C

Accessibility & contrast

On white

4.62

#D43E37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#D43E37 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #D43E37

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D43E37	#FFFFFF	#000000	##FFFFFF
##D43E37	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A6035

Deuteranopia (green-blind)

#8F8132

Tritanopia (blue-blind)

#E9003E

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #d43e37;
/* rgb */ color: rgb(212, 62, 55);
/* oklch */ color: oklch(58.4% 0.188 27.3);

Tailwind

colors: {
  custom: {
    50: '#ea7d6e',
    500: '#d43e37',
    950: '#000000',
  },
}

SCSS

$custom: #d43e37;
$custom-light: #ea7d6e;
$custom-dark: #000000;

JSON

{
  "hex": "#d43e37",
  "rgb": {
    "r": 212,
    "g": 62,
    "b": 55
  },
  "hsl": {
    "h": 2.675,
    "s": 64.609,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58399,
    "c": 0.18806,
    "h": 27.3
  },
  "luminance": 0.17718
}

Semantic roles & 50–950 ramp

primary

#D43E37

secondary

#91D3D6

accent

#E0E840

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D43E37

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

Preview Lab → · Contrast checker → · Palette generator →