#3311bb
a dark, electric blue · warm · closest name: navy
RGB
51, 17, 187
HSL
252°, 83%, 40%
CMYK
73, 91, 0, 27
Luminance
0.0469
Every format
| HEX | #3311bb |
| RGB | rgb(51, 17, 187) |
| HSL | hsl(252, 83%, 40%) |
| CMYK | cmyk(73%, 91%, 0%, 27%) |
| LAB | lab(25.8 59.8 -79.4) |
| LCH | lch(25.8 99.4 307.0) |
| OKLCH | oklch(0.388 0.231 275.9) |
Copy-ready code
/* CSS */
color: #3311bb;
background-color: #3311bb;
/* Tailwind (arbitrary) */
class="text-[#3311bb] bg-[#3311bb]"
/* SCSS */
$brand: #3311bb;
/* SwiftUI */
Color(red: 0.200, green: 0.067, blue: 0.733)
/* Android */
Color.parseColor("#3311bb")Accessibility — WCAG contrast
Aa
#3311bb on white: 10.83:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3311bb on black: 1.94:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green6.7%
Blue73.3%
CMYK percentages
Cyan72.7%
Magenta90.9%
Yellow0.0%
Key (black)26.7%
Color previews
#3311bb text on a black background
contrast 1.94:1
Card sample
#3311bb text on a white background
contrast 10.83:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3311bb;
Background color
Panel with #3311bb background
background-color: #3311bb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3311bb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 17, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 17, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3311bb; background: linear-gradient(135deg, #3311bb, #A411BB);