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#ac390d

a dark, electric orange · warm · closest name: firebrick

RGB
172, 57, 13
HSL
17°, 86%, 36%
CMYK
0, 67, 92, 33
Luminance
0.1173

Every format

HEX#ac390d
RGBrgb(172, 57, 13)
HSLhsl(17, 86%, 36%)
CMYKcmyk(0%, 67%, 92%, 33%)
LABlab(40.8 45.3 48.2)
LCHlch(40.8 66.2 46.8)
OKLCHoklch(0.507 0.158 38.0)

Copy-ready code

/* CSS */
color: #ac390d;
background-color: #ac390d;
/* Tailwind (arbitrary) */
class="text-[#ac390d] bg-[#ac390d]"
/* SCSS */
$brand: #ac390d;
/* SwiftUI */
Color(red: 0.675, green: 0.224, blue: 0.051)
/* Android */
Color.parseColor("#ac390d")

Accessibility — WCAG contrast

Aa
#ac390d on white: 6.28:1
AA ✓ pass · AA-large · AAA
Aa
#ac390d on black: 3.35:1
AA ✗ fail · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red67.5%
Green22.4%
Blue5.1%

CMYK percentages

Cyan0.0%
Magenta66.9%
Yellow92.4%
Key (black)32.5%

Color previews

#ac390d text on a black background

contrast 3.35:1

Card sample

#ac390d text on a white background

contrast 6.28:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #ac390d;
Background color
Panel with #ac390d background
background-color: #ac390d;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ac390d;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(172, 57, 13, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 57, 13, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ac390d;
background: linear-gradient(135deg, #ac390d, #ACA30D);

Monochromatic scale

Palettes built from #ac390d

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #ac390d in the Color Lab