#00adef
a balanced, electric cyan · cool · closest name: steelblue
RGB
0, 173, 239
HSL
197°, 100%, 47%
CMYK
100, 28, 0, 6
Luminance
0.3612
Every format
| HEX | #00adef |
| RGB | rgb(0, 173, 239) |
| HSL | hsl(197, 100%, 47%) |
| CMYK | cmyk(100%, 28%, 0%, 6%) |
| LAB | lab(66.6 -13.7 -43.2) |
| LCH | lch(66.6 45.3 252.4) |
| OKLCH | oklch(0.706 0.149 234.9) |
Copy-ready code
/* CSS */
color: #00adef;
background-color: #00adef;
/* Tailwind (arbitrary) */
class="text-[#00adef] bg-[#00adef]"
/* SCSS */
$brand: #00adef;
/* SwiftUI */
Color(red: 0.000, green: 0.678, blue: 0.937)
/* Android */
Color.parseColor("#00adef")Accessibility — WCAG contrast
Aa
#00adef on white: 2.55:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#00adef on black: 8.22:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green67.8%
Blue93.7%
CMYK percentages
Cyan100.0%
Magenta27.6%
Yellow0.0%
Key (black)6.3%
Color previews
#00adef text on a black background
contrast 8.22:1
Card sample
#00adef text on a white background
contrast 2.55:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #00adef;
Background color
Panel with #00adef background
background-color: #00adef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #00adef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 173, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 173, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #00adef; background: linear-gradient(135deg, #00adef, #000EEF);