#4271df
a balanced, vivid blue · cool · closest name: royalblue
RGB
66, 113, 223
HSL
222°, 71%, 57%
CMYK
70, 49, 0, 13
Luminance
0.1830
Every format
| HEX | #4271df |
| RGB | rgb(66, 113, 223) |
| HSL | hsl(222, 71%, 57%) |
| CMYK | cmyk(70%, 49%, 0%, 13%) |
| LAB | lab(49.9 20.6 -60.9) |
| LCH | lch(49.9 64.3 288.7) |
| OKLCH | oklch(0.575 0.176 264.2) |
Copy-ready code
/* CSS */
color: #4271df;
background-color: #4271df;
/* Tailwind (arbitrary) */
class="text-[#4271df] bg-[#4271df]"
/* SCSS */
$brand: #4271df;
/* SwiftUI */
Color(red: 0.259, green: 0.443, blue: 0.875)
/* Android */
Color.parseColor("#4271df")Accessibility — WCAG contrast
Aa
#4271df on white: 4.51:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#4271df on black: 4.66:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green44.3%
Blue87.5%
CMYK percentages
Cyan70.4%
Magenta49.3%
Yellow0.0%
Key (black)12.5%
Color previews
#4271df text on a black background
contrast 4.66:1
Card sample
#4271df text on a white background
contrast 4.51:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4271df;
Background color
Panel with #4271df background
background-color: #4271df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4271df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 113, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 113, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4271df; background: linear-gradient(135deg, #4271df, #7C42DF);