#166cdf
a balanced, electric blue · cool · closest name: royalblue
RGB
22, 108, 223
HSL
214°, 82%, 48%
CMYK
90, 52, 0, 13
Luminance
0.1622
Every format
| HEX | #166cdf |
| RGB | rgb(22, 108, 223) |
| HSL | hsl(214, 82%, 48%) |
| CMYK | cmyk(90%, 52%, 0%, 13%) |
| LAB | lab(47.3 19.7 -65.1) |
| LCH | lch(47.3 68.0 286.8) |
| OKLCH | oklch(0.552 0.192 258.2) |
Copy-ready code
/* CSS */
color: #166cdf;
background-color: #166cdf;
/* Tailwind (arbitrary) */
class="text-[#166cdf] bg-[#166cdf]"
/* SCSS */
$brand: #166cdf;
/* SwiftUI */
Color(red: 0.086, green: 0.424, blue: 0.875)
/* Android */
Color.parseColor("#166cdf")Accessibility — WCAG contrast
Aa
#166cdf on white: 4.95:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#166cdf on black: 4.24:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.6%
Green42.4%
Blue87.5%
CMYK percentages
Cyan90.1%
Magenta51.6%
Yellow0.0%
Key (black)12.5%
Color previews
#166cdf text on a black background
contrast 4.24:1
Card sample
#166cdf text on a white background
contrast 4.95:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #166cdf;
Background color
Panel with #166cdf background
background-color: #166cdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #166cdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(22, 108, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(22, 108, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #166cdf; background: linear-gradient(135deg, #166cdf, #4616DF);