#166bfd
a balanced, electric blue · cool · closest name: royalblue
RGB
22, 107, 253
HSL
218°, 98%, 54%
CMYK
91, 58, 0, 1
Luminance
0.1778
Every format
| HEX | #166bfd |
| RGB | rgb(22, 107, 253) |
| HSL | hsl(218, 98%, 54%) |
| CMYK | cmyk(91%, 58%, 0%, 1%) |
| LAB | lab(49.2 31.9 -78.7) |
| LCH | lch(49.2 84.9 292.0) |
| OKLCH | oklch(0.574 0.231 261.1) |
Copy-ready code
/* CSS */
color: #166bfd;
background-color: #166bfd;
/* Tailwind (arbitrary) */
class="text-[#166bfd] bg-[#166bfd]"
/* SCSS */
$brand: #166bfd;
/* SwiftUI */
Color(red: 0.086, green: 0.420, blue: 0.992)
/* Android */
Color.parseColor("#166bfd")Accessibility — WCAG contrast
Aa
#166bfd on white: 4.61:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#166bfd on black: 4.56:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.6%
Green42.0%
Blue99.2%
CMYK percentages
Cyan91.3%
Magenta57.7%
Yellow0.0%
Key (black)0.8%
Color previews
#166bfd text on a black background
contrast 4.56:1
Card sample
#166bfd text on a white background
contrast 4.61:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #166bfd;
Background color
Panel with #166bfd background
background-color: #166bfd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #166bfd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(22, 107, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(22, 107, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #166bfd; background: linear-gradient(135deg, #166bfd, #5B16FD);