#3737a6
a dark, vivid blue · warm · closest name: slateblue
RGB
55, 55, 166
HSL
240°, 50%, 43%
CMYK
67, 67, 0, 35
Luminance
0.0630
Every format
| HEX | #3737a6 |
| RGB | rgb(55, 55, 166) |
| HSL | hsl(240, 50%, 43%) |
| CMYK | cmyk(67%, 67%, 0%, 35%) |
| LAB | lab(30.1 35.7 -59.7) |
| LCH | lch(30.1 69.6 300.9) |
| OKLCH | oklch(0.413 0.173 275.7) |
Copy-ready code
/* CSS */
color: #3737a6;
background-color: #3737a6;
/* Tailwind (arbitrary) */
class="text-[#3737a6] bg-[#3737a6]"
/* SCSS */
$brand: #3737a6;
/* SwiftUI */
Color(red: 0.216, green: 0.216, blue: 0.651)
/* Android */
Color.parseColor("#3737a6")Accessibility — WCAG contrast
Aa
#3737a6 on white: 9.29:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3737a6 on black: 2.26:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.6%
Green21.6%
Blue65.1%
CMYK percentages
Cyan66.9%
Magenta66.9%
Yellow0.0%
Key (black)34.9%
Color previews
#3737a6 text on a black background
contrast 2.26:1
Card sample
#3737a6 text on a white background
contrast 9.29:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3737a6;
Background color
Panel with #3737a6 background
background-color: #3737a6;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3737a6;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(55, 55, 166, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 55, 166, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3737a6; background: linear-gradient(135deg, #3737a6, #8137A6);