#166afb
a balanced, electric blue · cool · closest name: royalblue
RGB
22, 106, 251
HSL
218°, 97%, 54%
CMYK
91, 58, 0, 2
Luminance
0.1744
Every format
| HEX | #166afb |
| RGB | rgb(22, 106, 251) |
| HSL | hsl(218, 97%, 54%) |
| CMYK | cmyk(91%, 58%, 0%, 2%) |
| LAB | lab(48.8 31.7 -78.3) |
| LCH | lch(48.8 84.5 292.1) |
| OKLCH | oklch(0.570 0.229 261.1) |
Copy-ready code
/* CSS */
color: #166afb;
background-color: #166afb;
/* Tailwind (arbitrary) */
class="text-[#166afb] bg-[#166afb]"
/* SCSS */
$brand: #166afb;
/* SwiftUI */
Color(red: 0.086, green: 0.416, blue: 0.984)
/* Android */
Color.parseColor("#166afb")Accessibility — WCAG contrast
Aa
#166afb on white: 4.68:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#166afb on black: 4.49:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.6%
Green41.6%
Blue98.4%
CMYK percentages
Cyan91.2%
Magenta57.8%
Yellow0.0%
Key (black)1.6%
Color previews
#166afb text on a black background
contrast 4.49:1
Card sample
#166afb text on a white background
contrast 4.68:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #166afb;
Background color
Panel with #166afb background
background-color: #166afb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #166afb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(22, 106, 251, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(22, 106, 251, 0.45);
Border & gradient
Gradient panel
border: 3px solid #166afb; background: linear-gradient(135deg, #166afb, #5B16FB);