#D43E3B#D43E3B

#D43E3B is a mid, vivid red. Relative luminance 0.178; OKLCH L 58.5% C 0.188 H 26.1°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#D43E3B
RGB	rgb(212, 62, 59)
HSL	hsl(1, 64%, 53%)
HSV	hsv(1, 72%, 83%)
CMYK	cmyk(0%, 70.8%, 72.2%, 16.9%)
CIE-LAB	lab(49.21, 58.10, 36.30)
CIE-LCH	lch(49.21, 68.51, 32.00°)
OKLab	oklab(58.45% 0.1684 0.0824)
OKLCH	oklch(58.45% 0.188 26.1)
XYZ	xyz(29.6667, 17.7625, 6.0032)
Luminance	0.1776 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D43E3B #3BD1D4

analogous

#D43B85 #D43E3B #D48A3B

triadic

#D43E3B #3BD43E #3E3BD4

tetradic

#D43E3B #85D43B #3BD1D4 #8A3BD4

square

#D43E3B #85D43B #3BD1D4 #8A3BD4

split-complementary

#D43E3B #3BD48A #3B85D4

monochromatic

#7A1D1B #AC2826 #D43E3B #DF6F6D #EAA19F

Accessibility & contrast

On white

4.61

#D43E3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#D43E3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #D43E3B

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D43E3B	#FFFFFF	#000000	##FFFFFF
##D43E3B	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696039

Deuteranopia (green-blind)

#8F8136

Tritanopia (blue-blind)

#E9003F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #d43e3b;
/* rgb */ color: rgb(212, 62, 59);
/* oklch */ color: oklch(58.5% 0.188 26.1);

Tailwind

colors: {
  custom: {
    50: '#ea7d71',
    500: '#d43e3b',
    950: '#000000',
  },
}

SCSS

$custom: #d43e3b;
$custom-light: #ea7d71;
$custom-dark: #000000;

JSON

{
  "hex": "#d43e3b",
  "rgb": {
    "r": 212,
    "g": 62,
    "b": 59
  },
  "hsl": {
    "h": 1.176,
    "s": 64.017,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58451,
    "c": 0.18751,
    "h": 26.1
  },
  "luminance": 0.17758
}

Semantic roles & 50–950 ramp

primary

#D43E3B

secondary

#94D5D6

accent

#E4E741

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D43E3B

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

Preview Lab → · Contrast checker → · Palette generator →