#3b91df
a balanced, vivid blue · cool · closest name: steelblue
RGB
59, 145, 223
HSL
209°, 72%, 55%
CMYK
74, 35, 0, 13
Luminance
0.2651
Every format
| HEX | #3b91df |
| RGB | rgb(59, 145, 223) |
| HSL | hsl(209, 72%, 55%) |
| CMYK | cmyk(74%, 35%, 0%, 13%) |
| LAB | lab(58.5 0.2 -47.0) |
| LCH | lch(58.5 47.0 270.3) |
| OKLCH | oklch(0.641 0.143 249.3) |
Copy-ready code
/* CSS */
color: #3b91df;
background-color: #3b91df;
/* Tailwind (arbitrary) */
class="text-[#3b91df] bg-[#3b91df]"
/* SCSS */
$brand: #3b91df;
/* SwiftUI */
Color(red: 0.231, green: 0.569, blue: 0.875)
/* Android */
Color.parseColor("#3b91df")Accessibility — WCAG contrast
Aa
#3b91df on white: 3.33:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3b91df on black: 6.30:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red23.1%
Green56.9%
Blue87.5%
CMYK percentages
Cyan73.5%
Magenta35.0%
Yellow0.0%
Key (black)12.5%
Color previews
#3b91df text on a black background
contrast 6.30:1
Card sample
#3b91df text on a white background
contrast 3.33:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3b91df;
Background color
Panel with #3b91df background
background-color: #3b91df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3b91df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(59, 145, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(59, 145, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3b91df; background: linear-gradient(135deg, #3b91df, #523BDF);