#D43F3B#D43F3B

#D43F3B is a mid, vivid red. Relative luminance 0.179; OKLCH L 58.6% C 0.187 H 26.3°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#D43F3B
RGB	rgb(212, 63, 59)
HSL	hsl(2, 64%, 53%)
HSV	hsv(2, 72%, 83%)
CMYK	cmyk(0%, 70.3%, 72.2%, 16.9%)
CIE-LAB	lab(49.34, 57.73, 36.46)
CIE-LCH	lch(49.34, 68.28, 32.27°)
OKLab	oklab(58.55% 0.1673 0.0827)
OKLCH	oklch(58.55% 0.187 26.3)
XYZ	xyz(29.7216, 17.8723, 6.0215)
Luminance	0.1787 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D43F3B #3BD0D4

analogous

#D43B83 #D43F3B #D48C3B

triadic

#D43F3B #3BD43F #3F3BD4

tetradic

#D43F3B #83D43B #3BD0D4 #8C3BD4

square

#D43F3B #83D43B #3BD0D4 #8C3BD4

split-complementary

#D43F3B #3BD48C #3B83D4

monochromatic

#7A1D1B #AC2926 #D43F3B #DF706D #EAA19F

Accessibility & contrast

On white

4.59

#D43F3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#D43F3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #D43F3B

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D43F3B	#FFFFFF	#000000	##FFFFFF
##D43F3B	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A6139

Deuteranopia (green-blind)

#8F8136

Tritanopia (blue-blind)

#E90440

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #d43f3b;
/* rgb */ color: rgb(212, 63, 59);
/* oklch */ color: oklch(58.6% 0.187 26.3);

Tailwind

colors: {
  custom: {
    50: '#ea7e71',
    500: '#d43f3b',
    950: '#000000',
  },
}

SCSS

$custom: #d43f3b;
$custom-light: #ea7e71;
$custom-dark: #000000;

JSON

{
  "hex": "#d43f3b",
  "rgb": {
    "r": 212,
    "g": 63,
    "b": 59
  },
  "hsl": {
    "h": 1.569,
    "s": 64.017,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58551,
    "c": 0.18662,
    "h": 26.3
  },
  "luminance": 0.17868
}

Semantic roles & 50–950 ramp

primary

#D43F3B

secondary

#94D5D6

accent

#E3E741

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#180B08

muted

#867C7B

Preview Lab

Preview with #D43F3B

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

Preview Lab → · Contrast checker → · Palette generator →