#3591df
a balanced, vivid blue · cool · closest name: steelblue
RGB
53, 145, 223
HSL
208°, 73%, 54%
CMYK
76, 35, 0, 13
Luminance
0.2634
Every format
| HEX | #3591df |
| RGB | rgb(53, 145, 223) |
| HSL | hsl(208, 73%, 54%) |
| CMYK | cmyk(76%, 35%, 0%, 13%) |
| LAB | lab(58.4 -0.5 -47.3) |
| LCH | lch(58.4 47.3 269.4) |
| OKLCH | oklch(0.640 0.145 248.2) |
Copy-ready code
/* CSS */
color: #3591df;
background-color: #3591df;
/* Tailwind (arbitrary) */
class="text-[#3591df] bg-[#3591df]"
/* SCSS */
$brand: #3591df;
/* SwiftUI */
Color(red: 0.208, green: 0.569, blue: 0.875)
/* Android */
Color.parseColor("#3591df")Accessibility — WCAG contrast
Aa
#3591df on white: 3.35:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3591df on black: 6.27:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.8%
Green56.9%
Blue87.5%
CMYK percentages
Cyan76.2%
Magenta35.0%
Yellow0.0%
Key (black)12.5%
Color previews
#3591df text on a black background
contrast 6.27:1
Card sample
#3591df text on a white background
contrast 3.35:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3591df;
Background color
Panel with #3591df background
background-color: #3591df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3591df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(53, 145, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(53, 145, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3591df; background: linear-gradient(135deg, #3591df, #4A35DF);