#166df7
a balanced, electric blue · cool · closest name: royalblue
RGB
22, 109, 247
HSL
217°, 93%, 53%
CMYK
91, 56, 0, 3
Luminance
0.1782
Every format
| HEX | #166df7 |
| RGB | rgb(22, 109, 247) |
| HSL | hsl(217, 93%, 53%) |
| CMYK | cmyk(91%, 56%, 0%, 3%) |
| LAB | lab(49.3 28.3 -75.3) |
| LCH | lch(49.3 80.5 290.6) |
| OKLCH | oklch(0.573 0.221 260.3) |
Copy-ready code
/* CSS */
color: #166df7;
background-color: #166df7;
/* Tailwind (arbitrary) */
class="text-[#166df7] bg-[#166df7]"
/* SCSS */
$brand: #166df7;
/* SwiftUI */
Color(red: 0.086, green: 0.427, blue: 0.969)
/* Android */
Color.parseColor("#166df7")Accessibility — WCAG contrast
Aa
#166df7 on white: 4.60:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#166df7 on black: 4.56:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.6%
Green42.7%
Blue96.9%
CMYK percentages
Cyan91.1%
Magenta55.9%
Yellow0.0%
Key (black)3.1%
Color previews
#166df7 text on a black background
contrast 4.56:1
Card sample
#166df7 text on a white background
contrast 4.60:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #166df7;
Background color
Panel with #166df7 background
background-color: #166df7;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #166df7;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(22, 109, 247, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(22, 109, 247, 0.45);
Border & gradient
Gradient panel
border: 3px solid #166df7; background: linear-gradient(135deg, #166df7, #5516F7);