#D43B3B#D43B3B

#D43B3B is a mid, vivid red. Relative luminance 0.174; OKLCH L 58.2% C 0.190 H 25.4°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#D43B3B
RGB	rgb(212, 59, 59)
HSL	hsl(0, 64%, 53%)
HSV	hsv(0, 72%, 83%)
CMYK	cmyk(0%, 72.2%, 72.2%, 16.9%)
CIE-LAB	lab(48.82, 59.18, 35.86)
CIE-LCH	lch(48.82, 69.20, 31.21°)
OKLab	oklab(58.16% 0.1718 0.0814)
OKLCH	oklch(58.16% 0.19 25.4)
XYZ	xyz(29.5081, 17.4452, 5.9503)
Luminance	0.1744 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D43B3B #3BD4D4

analogous

#D43B87 #D43B3B #D4873B

triadic

#D43B3B #3BD43B #3B3BD4

tetradic

#D43B3B #87D43B #3BD4D4 #873BD4

square

#D43B3B #87D43B #3BD4D4 #873BD4

split-complementary

#D43B3B #3BD487 #3B87D4

monochromatic

#7A1B1B #AC2626 #D43B3B #DF6D6D #EA9F9F

Accessibility & contrast

On white

4.68

#D43B3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#D43B3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #D43B3B

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D43B3B	#FFFFFF	#000000	##FFFFFF
##D43B3B	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685F39

Deuteranopia (green-blind)

#8E8036

Tritanopia (blue-blind)

#E9003D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #d43b3b;
/* rgb */ color: rgb(212, 59, 59);
/* oklch */ color: oklch(58.2% 0.190 25.4);

Tailwind

colors: {
  custom: {
    50: '#ea7c71',
    500: '#d43b3b',
    950: '#000000',
  },
}

SCSS

$custom: #d43b3b;
$custom-light: #ea7c71;
$custom-dark: #000000;

JSON

{
  "hex": "#d43b3b",
  "rgb": {
    "r": 212,
    "g": 59,
    "b": 59
  },
  "hsl": {
    "h": 0,
    "s": 64.017,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58159,
    "c": 0.19015,
    "h": 25.4
  },
  "luminance": 0.17441
}

Semantic roles & 50–950 ramp

primary

#D43B3B

secondary

#94D6D6

accent

#E7E741

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D43B3B

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

Preview Lab → · Contrast checker → · Palette generator →