#D33F3D#D33F3D

#D33F3D is a mid, vivid red. Relative luminance 0.177; OKLCH L 58.4% C 0.185 H 25.6°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#D33F3D
RGB	rgb(211, 63, 61)
HSL	hsl(1, 63%, 53%)
HSV	hsv(1, 71%, 83%)
CMYK	cmyk(0%, 70.1%, 71.1%, 17.3%)
CIE-LAB	lab(49.19, 57.51, 35.09)
CIE-LCH	lch(49.19, 67.37, 31.39°)
OKLab	oklab(58.41% 0.1671 0.0802)
OKLCH	oklch(58.41% 0.185 25.6)
XYZ	xyz(29.4870, 17.7452, 6.2865)
Luminance	0.1774 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#D33F3D #3DD1D3

analogous

#D33D86 #D33F3D #D38A3D

triadic

#D33F3D #3DD33F #3F3DD3

tetradic

#D33F3D #86D33D #3DD1D3 #8A3DD3

square

#D33F3D #86D33D #3DD1D3 #8A3DD3

split-complementary

#D33F3D #3DD38A #3D86D3

monochromatic

#7A1D1C #AC2927 #D33F3D #DE706F #EAA2A1

Accessibility & contrast

On white

4.62

#D33F3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#D33F3D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #D33F3D

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##D33F3D	#FFFFFF	#000000	##FFFFFF
##D33F3D	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#69613B

Deuteranopia (green-blind)

#8E8138

Tritanopia (blue-blind)

#E80740

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #d33f3d;
/* rgb */ color: rgb(211, 63, 61);
/* oklch */ color: oklch(58.4% 0.185 25.6);

Tailwind

colors: {
  custom: {
    50: '#e97d73',
    500: '#d33f3d',
    950: '#000000',
  },
}

SCSS

$custom: #d33f3d;
$custom-light: #e97d73;
$custom-dark: #000000;

JSON

{
  "hex": "#d33f3d",
  "rgb": {
    "r": 211,
    "g": 63,
    "b": 61
  },
  "hsl": {
    "h": 0.8,
    "s": 63.025,
    "l": 53.333
  },
  "oklch": {
    "l": 0.5841,
    "c": 0.18534,
    "h": 25.6
  },
  "luminance": 0.17741
}

Semantic roles & 50–950 ramp

primary

#D33F3D

secondary

#96D5D6

accent

#E4E642

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#180A08

muted

#867C7B

Preview Lab

Preview with #D33F3D

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

Preview Lab → · Contrast checker → · Palette generator →