#3540df
a balanced, vivid blue · warm · closest name: slateblue
RGB
53, 64, 223
HSL
236°, 73%, 54%
CMYK
76, 71, 0, 13
Luminance
0.0975
Every format
| HEX | #3540df |
| RGB | rgb(53, 64, 223) |
| HSL | hsl(236, 73%, 54%) |
| CMYK | cmyk(76%, 71%, 0%, 13%) |
| LAB | lab(37.4 49.5 -81.2) |
| LCH | lch(37.4 95.1 301.3) |
| OKLCH | oklch(0.481 0.235 270.7) |
Copy-ready code
/* CSS */
color: #3540df;
background-color: #3540df;
/* Tailwind (arbitrary) */
class="text-[#3540df] bg-[#3540df]"
/* SCSS */
$brand: #3540df;
/* SwiftUI */
Color(red: 0.208, green: 0.251, blue: 0.875)
/* Android */
Color.parseColor("#3540df")Accessibility — WCAG contrast
Aa
#3540df on white: 7.12:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3540df on black: 2.95:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.8%
Green25.1%
Blue87.5%
CMYK percentages
Cyan76.2%
Magenta71.3%
Yellow0.0%
Key (black)12.5%
Color previews
#3540df text on a black background
contrast 2.95:1
Card sample
#3540df text on a white background
contrast 7.12:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3540df;
Background color
Panel with #3540df background
background-color: #3540df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3540df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(53, 64, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(53, 64, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3540df; background: linear-gradient(135deg, #3540df, #9B35DF);