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#00aadd

a dark, electric cyan · cool · closest name: steelblue

RGB
0, 170, 221
HSL
194°, 100%, 43%
CMYK
100, 23, 0, 13
Luminance
0.3397

Every format

HEX#00aadd
RGBrgb(0, 170, 221)
HSLhsl(194, 100%, 43%)
CMYKcmyk(100%, 23%, 0%, 13%)
LABlab(64.9 -18.5 -35.9)
LCHlch(64.9 40.4 242.8)
OKLCHoklch(0.690 0.135 228.5)

Copy-ready code

/* CSS */
color: #00aadd;
background-color: #00aadd;
/* Tailwind (arbitrary) */
class="text-[#00aadd] bg-[#00aadd]"
/* SCSS */
$brand: #00aadd;
/* SwiftUI */
Color(red: 0.000, green: 0.667, blue: 0.867)
/* Android */
Color.parseColor("#00aadd")

Accessibility — WCAG contrast

Aa
#00aadd on white: 2.69:1
AA ✗ fail · AA-large · AAA
Aa
#00aadd on black: 7.79:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red0.0%
Green66.7%
Blue86.7%

CMYK percentages

Cyan100.0%
Magenta23.1%
Yellow0.0%
Key (black)13.3%

Color previews

#00aadd text on a black background

contrast 7.79:1

Card sample

#00aadd text on a white background

contrast 2.69:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #00aadd;
Background color
Panel with #00aadd background
background-color: #00aadd;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #00aadd;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(0, 170, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 170, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #00aadd;
background: linear-gradient(135deg, #00aadd, #0017DD);

Monochromatic scale

Palettes built from #00aadd

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #00aadd in the Color Lab