#D33F3A#D33F3A

#D33F3A is a mid, vivid red. Relative luminance 0.177; OKLCH L 58.4% C 0.186 H 26.6°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#D33F3A
RGB	rgb(211, 63, 58)
HSL	hsl(2, 63%, 53%)
HSV	hsv(2, 73%, 83%)
CMYK	cmyk(0%, 70.1%, 72.5%, 17.3%)
CIE-LAB	lab(49.15, 57.37, 36.76)
CIE-LCH	lch(49.15, 68.14, 32.65°)
OKLab	oklab(58.37% 0.166 0.0832)
OKLCH	oklch(58.37% 0.186 26.6)
XYZ	xyz(29.4085, 17.7138, 5.8728)
Luminance	0.1771 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D33F3A #3ACED3

analogous

#D33A81 #D33F3A #D38C3A

triadic

#D33F3A #3AD33F #3F3AD3

tetradic

#D33F3A #81D33A #3ACED3 #8C3AD3

square

#D33F3A #81D33A #3ACED3 #8C3AD3

split-complementary

#D33F3A #3AD38C #3A81D3

monochromatic

#781E1B #AA2A26 #D33F3A #DE706C #E9A19E

Accessibility & contrast

On white

4.62

#D33F3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#D33F3A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #D33F3A

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D33F3A	#FFFFFF	#000000	##FFFFFF
##D33F3A	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)

#6A6038

Deuteranopia (green-blind)

#8E8135

Tritanopia (blue-blind)

#E8053F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #d33f3a;
/* rgb */ color: rgb(211, 63, 58);
/* oklch */ color: oklch(58.4% 0.186 26.6);

Tailwind

colors: {
  custom: {
    50: '#e97d71',
    500: '#d33f3a',
    950: '#000000',
  },
}

SCSS

$custom: #d33f3a;
$custom-light: #e97d71;
$custom-dark: #000000;

JSON

{
  "hex": "#d33f3a",
  "rgb": {
    "r": 211,
    "g": 63,
    "b": 58
  },
  "hsl": {
    "h": 1.961,
    "s": 63.485,
    "l": 52.745
  },
  "oklch": {
    "l": 0.58369,
    "c": 0.18574,
    "h": 26.6
  },
  "luminance": 0.17709
}

Semantic roles & 50–950 ramp

primary

#D33F3A

secondary

#93D3D6

accent

#E1E741

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #D33F3A

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

Preview Lab → · Contrast checker → · Palette generator →