#3993df
a balanced, vivid blue · cool · closest name: steelblue
RGB
57, 147, 223
HSL
208°, 72%, 55%
CMYK
74, 34, 0, 13
Luminance
0.2707
Every format
| HEX | #3993df |
| RGB | rgb(57, 147, 223) |
| HSL | hsl(208, 72%, 55%) |
| CMYK | cmyk(74%, 34%, 0%, 13%) |
| LAB | lab(59.0 -1.2 -46.2) |
| LCH | lch(59.0 46.2 268.5) |
| OKLCH | oklch(0.645 0.142 247.8) |
Copy-ready code
/* CSS */
color: #3993df;
background-color: #3993df;
/* Tailwind (arbitrary) */
class="text-[#3993df] bg-[#3993df]"
/* SCSS */
$brand: #3993df;
/* SwiftUI */
Color(red: 0.224, green: 0.576, blue: 0.875)
/* Android */
Color.parseColor("#3993df")Accessibility — WCAG contrast
Aa
#3993df on white: 3.27:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3993df on black: 6.41:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green57.6%
Blue87.5%
CMYK percentages
Cyan74.4%
Magenta34.1%
Yellow0.0%
Key (black)12.5%
Color previews
#3993df text on a black background
contrast 6.41:1
Card sample
#3993df text on a white background
contrast 3.27:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3993df;
Background color
Panel with #3993df background
background-color: #3993df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3993df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 147, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 147, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3993df; background: linear-gradient(135deg, #3993df, #4E39DF);