#D43F3F#D43F3F

#D43F3F is a mid, vivid red. Relative luminance 0.179; OKLCH L 58.6% C 0.186 H 25.0°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#D43F3F
RGB	rgb(212, 63, 63)
HSL	hsl(0, 63%, 54%)
HSV	hsv(0, 70%, 83%)
CMYK	cmyk(0%, 70.3%, 70.3%, 16.9%)
CIE-LAB	lab(49.39, 57.92, 34.23)
CIE-LCH	lch(49.39, 67.28, 30.58°)
OKLab	oklab(58.61% 0.1687 0.0786)
OKLCH	oklch(58.61% 0.186 25)
XYZ	xyz(29.8294, 17.9154, 6.5890)
Luminance	0.1791 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D43F3F #3FD4D4

analogous

#D43F8A #D43F3F #D48A3F

triadic

#D43F3F #3FD43F #3F3FD4

tetradic

#D43F3F #8AD43F #3FD4D4 #8A3FD4

square

#D43F3F #8AD43F #3FD4D4 #8A3FD4

split-complementary

#D43F3F #3FD48A #3F8AD4

monochromatic

#7D1C1C #AF2727 #D43F3F #DF7171 #EAA3A3

Accessibility & contrast

On white

4.58

#D43F3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#D43F3F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #D43F3F

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D43F3F	#FFFFFF	#000000	##000000
##D43F3F	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)

#69613D

Deuteranopia (green-blind)

#8F813A

Tritanopia (blue-blind)

#E90741

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #d43f3f;
/* rgb */ color: rgb(212, 63, 63);
/* oklch */ color: oklch(58.6% 0.186 25.0);

Tailwind

colors: {
  custom: {
    50: '#ea7e74',
    500: '#d43f3f',
    950: '#000000',
  },
}

SCSS

$custom: #d43f3f;
$custom-light: #ea7e74;
$custom-dark: #000000;

JSON

{
  "hex": "#d43f3f",
  "rgb": {
    "r": 212,
    "g": 63,
    "b": 63
  },
  "hsl": {
    "h": 0,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.58607,
    "c": 0.1861,
    "h": 25
  },
  "luminance": 0.17911
}

Semantic roles & 50–950 ramp

primary

#D43F3F

secondary

#98D7D7

accent

#E6E641

background

#FFF8F7

surface

#FFEFED

border

#D7CAC8

text

#180B08

muted

#867C7B

Preview Lab

Preview with #D43F3F

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

Preview Lab → · Contrast checker → · Palette generator →