#D33F3B#D33F3B

#D33F3B is a mid, vivid red. Relative luminance 0.177; OKLCH L 58.4% C 0.186 H 26.3°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#D33F3B
RGB	rgb(211, 63, 59)
HSL	hsl(2, 63%, 53%)
HSV	hsv(2, 72%, 83%)
CMYK	cmyk(0%, 70.1%, 72%, 17.3%)
CIE-LAB	lab(49.16, 57.42, 36.20)
CIE-LCH	lch(49.16, 67.88, 32.23°)
OKLab	oklab(58.38% 0.1664 0.0822)
OKLCH	oklch(58.38% 0.186 26.3)
XYZ	xyz(29.4342, 17.7241, 6.0080)
Luminance	0.1772 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D33F3B #3BCFD3

analogous

#D33B83 #D33F3B #D38B3B

triadic

#D33F3B #3BD33F #3F3BD3

tetradic

#D33F3B #83D33B #3BCFD3 #8B3BD3

square

#D33F3B #83D33B #3BCFD3 #8B3BD3

split-complementary

#D33F3B #3BD38B #3B83D3

monochromatic

#791E1B #AB2A26 #D33F3B #DE706D #E9A19F

Accessibility & contrast

On white

4.62

#D33F3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#D33F3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #D33F3B

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D33F3B	#FFFFFF	#000000	##FFFFFF
##D33F3B	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696039

Deuteranopia (green-blind)

#8E8136

Tritanopia (blue-blind)

#E80540

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #d33f3b;
/* rgb */ color: rgb(211, 63, 59);
/* oklch */ color: oklch(58.4% 0.186 26.3);

Tailwind

colors: {
  custom: {
    50: '#e97d71',
    500: '#d33f3b',
    950: '#000000',
  },
}

SCSS

$custom: #d33f3b;
$custom-light: #e97d71;
$custom-dark: #000000;

JSON

{
  "hex": "#d33f3b",
  "rgb": {
    "r": 211,
    "g": 63,
    "b": 59
  },
  "hsl": {
    "h": 1.579,
    "s": 63.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.58382,
    "c": 0.1856,
    "h": 26.3
  },
  "luminance": 0.1772
}

Semantic roles & 50–950 ramp

primary

#D33F3B

secondary

#94D4D6

accent

#E2E641

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D33F3B

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

Preview Lab → · Contrast checker → · Palette generator →