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#ad3921

a dark, vivid red · warm · closest name: firebrick

RGB
173, 57, 33
HSL
10°, 68%, 40%
CMYK
0, 67, 81, 32
Luminance
0.1192

Every format

HEX#ad3921
RGBrgb(173, 57, 33)
HSLhsl(10, 68%, 40%)
CMYKcmyk(0%, 67%, 81%, 32%)
LABlab(41.1 46.1 39.8)
LCHlch(41.1 60.9 40.8)
OKLCHoklch(0.510 0.156 33.5)

Copy-ready code

/* CSS */
color: #ad3921;
background-color: #ad3921;
/* Tailwind (arbitrary) */
class="text-[#ad3921] bg-[#ad3921]"
/* SCSS */
$brand: #ad3921;
/* SwiftUI */
Color(red: 0.678, green: 0.224, blue: 0.129)
/* Android */
Color.parseColor("#ad3921")

Accessibility — WCAG contrast

Aa
#ad3921 on white: 6.21:1
AA ✓ pass · AA-large · AAA
Aa
#ad3921 on black: 3.38:1
AA ✗ fail · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red67.8%
Green22.4%
Blue12.9%

CMYK percentages

Cyan0.0%
Magenta67.1%
Yellow80.9%
Key (black)32.2%

Color previews

#ad3921 text on a black background

contrast 3.38:1

Card sample

#ad3921 text on a white background

contrast 6.21:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #ad3921;
Background color
Panel with #ad3921 background
background-color: #ad3921;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ad3921;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(173, 57, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(173, 57, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ad3921;
background: linear-gradient(135deg, #ad3921, #AD9621);

Monochromatic scale

Palettes built from #ad3921

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #ad3921 in the Color Lab