#166acf
a dark, electric blue · cool · closest name: royalblue
RGB
22, 106, 207
HSL
213°, 81%, 45%
CMYK
89, 49, 0, 19
Luminance
0.1498
Every format
| HEX | #166acf |
| RGB | rgb(22, 106, 207) |
| HSL | hsl(213, 81%, 45%) |
| CMYK | cmyk(89%, 49%, 0%, 19%) |
| LAB | lab(45.6 14.7 -58.7) |
| LCH | lch(45.6 60.5 284.1) |
| OKLCH | oklch(0.535 0.174 256.6) |
Copy-ready code
/* CSS */
color: #166acf;
background-color: #166acf;
/* Tailwind (arbitrary) */
class="text-[#166acf] bg-[#166acf]"
/* SCSS */
$brand: #166acf;
/* SwiftUI */
Color(red: 0.086, green: 0.416, blue: 0.812)
/* Android */
Color.parseColor("#166acf")Accessibility — WCAG contrast
Aa
#166acf on white: 5.25:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#166acf on black: 4.00:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.6%
Green41.6%
Blue81.2%
CMYK percentages
Cyan89.4%
Magenta48.8%
Yellow0.0%
Key (black)18.8%
Color previews
#166acf text on a black background
contrast 4.00:1
Card sample
#166acf text on a white background
contrast 5.25:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #166acf;
Background color
Panel with #166acf background
background-color: #166acf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #166acf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(22, 106, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(22, 106, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #166acf; background: linear-gradient(135deg, #166acf, #3D16CF);