#166eda
a balanced, electric blue · cool · closest name: royalblue
RGB
22, 110, 218
HSL
213°, 82%, 47%
CMYK
90, 50, 0, 15
Luminance
0.1638
Every format
| HEX | #166eda |
| RGB | rgb(22, 110, 218) |
| HSL | hsl(213, 82%, 47%) |
| CMYK | cmyk(90%, 50%, 0%, 15%) |
| LAB | lab(47.5 16.5 -61.9) |
| LCH | lch(47.5 64.1 284.9) |
| OKLCH | oklch(0.552 0.183 257.0) |
Copy-ready code
/* CSS */
color: #166eda;
background-color: #166eda;
/* Tailwind (arbitrary) */
class="text-[#166eda] bg-[#166eda]"
/* SCSS */
$brand: #166eda;
/* SwiftUI */
Color(red: 0.086, green: 0.431, blue: 0.855)
/* Android */
Color.parseColor("#166eda")Accessibility — WCAG contrast
Aa
#166eda on white: 4.91:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#166eda on black: 4.28:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.6%
Green43.1%
Blue85.5%
CMYK percentages
Cyan89.9%
Magenta49.5%
Yellow0.0%
Key (black)14.5%
Color previews
#166eda text on a black background
contrast 4.28:1
Card sample
#166eda text on a white background
contrast 4.91:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #166eda;
Background color
Panel with #166eda background
background-color: #166eda;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #166eda;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(22, 110, 218, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(22, 110, 218, 0.45);
Border & gradient
Gradient panel
border: 3px solid #166eda; background: linear-gradient(135deg, #166eda, #4116DA);