#D33A3B#D33A3B

#D33A3B is a mid, vivid red. Relative luminance 0.172; OKLCH L 57.9% C 0.190 H 25.1°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#D33A3B
RGB	rgb(211, 58, 59)
HSL	hsl(360, 63%, 53%)
HSV	hsv(360, 73%, 83%)
CMYK	cmyk(0%, 72.5%, 72%, 17.3%)
CIE-LAB	lab(48.51, 59.22, 35.45)
CIE-LCH	lch(48.51, 69.02, 30.90°)
OKLab	oklab(57.89% 0.1721 0.0806)
OKLCH	oklch(57.89% 0.19 25.1)
XYZ	xyz(29.1697, 17.1952, 5.9199)
Luminance	0.1719 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D33A3B #3AD3D2

analogous

#D33A87 #D33A3B #D3863A

triadic

#D33A3B #3BD33A #3A3BD3

tetradic

#D33A3B #87D33A #3AD3D2 #863AD3

square

#D33A3B #87D33A #3AD3D2 #863AD3

split-complementary

#D33A3B #3AD386 #3A87D3

monochromatic

#781B1B #AA2627 #D33A3B #DE6C6D #E99E9F

Accessibility & contrast

On white

4.73

#D33A3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#D33A3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #D33A3B

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D33A3B	#FFFFFF	#000000	##FFFFFF
##D33A3B	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#675E39

Deuteranopia (green-blind)

#8D7F36

Tritanopia (blue-blind)

#E8003C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #d33a3b;
/* rgb */ color: rgb(211, 58, 59);
/* oklch */ color: oklch(57.9% 0.190 25.1);

Tailwind

colors: {
  custom: {
    50: '#e97b71',
    500: '#d33a3b',
    950: '#000000',
  },
}

SCSS

$custom: #d33a3b;
$custom-light: #e97b71;
$custom-dark: #000000;

JSON

{
  "hex": "#d33a3b",
  "rgb": {
    "r": 211,
    "g": 58,
    "b": 59
  },
  "hsl": {
    "h": 359.608,
    "s": 63.485,
    "l": 52.745
  },
  "oklch": {
    "l": 0.57894,
    "c": 0.19003,
    "h": 25.1
  },
  "luminance": 0.17191
}

Semantic roles & 50–950 ramp

primary

#D33A3B

secondary

#93D6D5

accent

#E7E541

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D33A3B

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

Preview Lab → · Contrast checker → · Palette generator →