#166fd8
a balanced, electric blue · cool · closest name: royalblue
RGB
22, 111, 216
HSL
213°, 82%, 47%
CMYK
90, 49, 0, 15
Luminance
0.1650
Every format
| HEX | #166fd8 |
| RGB | rgb(22, 111, 216) |
| HSL | hsl(213, 82%, 47%) |
| CMYK | cmyk(90%, 49%, 0%, 15%) |
| LAB | lab(47.6 15.1 -60.6) |
| LCH | lch(47.6 62.4 284.0) |
| OKLCH | oklch(0.553 0.179 256.4) |
Copy-ready code
/* CSS */
color: #166fd8;
background-color: #166fd8;
/* Tailwind (arbitrary) */
class="text-[#166fd8] bg-[#166fd8]"
/* SCSS */
$brand: #166fd8;
/* SwiftUI */
Color(red: 0.086, green: 0.435, blue: 0.847)
/* Android */
Color.parseColor("#166fd8")Accessibility — WCAG contrast
Aa
#166fd8 on white: 4.88:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#166fd8 on black: 4.30:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.6%
Green43.5%
Blue84.7%
CMYK percentages
Cyan89.8%
Magenta48.6%
Yellow0.0%
Key (black)15.3%
Color previews
#166fd8 text on a black background
contrast 4.30:1
Card sample
#166fd8 text on a white background
contrast 4.88:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #166fd8;
Background color
Panel with #166fd8 background
background-color: #166fd8;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #166fd8;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(22, 111, 216, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(22, 111, 216, 0.45);
Border & gradient
Gradient panel
border: 3px solid #166fd8; background: linear-gradient(135deg, #166fd8, #3E16D8);