#4166df
a balanced, vivid blue · warm · “royalblue”
RGB
65, 102, 223
HSL
226°, 71%, 57%
CMYK
71, 54, 0, 13
Luminance
0.1595
Every format
| HEX | #4166df |
| RGB | rgb(65, 102, 223) |
| HSL | hsl(226, 71%, 57%) |
| CMYK | cmyk(71%, 54%, 0%, 13%) |
| LAB | lab(46.9 27.4 -65.6) |
| LCH | lch(46.9 71.1 292.7) |
| OKLCH | oklch(0.552 0.189 267.1) |
Copy-ready code
/* CSS */
color: #4166df;
background-color: #4166df;
/* Tailwind (arbitrary) */
class="text-[#4166df] bg-[#4166df]"
/* SCSS */
$brand: #4166df;
/* SwiftUI */
Color(red: 0.255, green: 0.400, blue: 0.875)
/* Android */
Color.parseColor("#4166df")Accessibility — WCAG contrast
Aa
#4166df on white: 5.01:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#4166df on black: 4.19:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.5%
Green40.0%
Blue87.5%
CMYK percentages
Cyan70.9%
Magenta54.3%
Yellow0.0%
Key (black)12.5%
Color previews
#4166df text on a black background
contrast 4.19:1
Card sample
#4166df text on a white background
contrast 5.01:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4166df;
Background color
Panel with #4166df background
background-color: #4166df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4166df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(65, 102, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(65, 102, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4166df; background: linear-gradient(135deg, #4166df, #8541DF);