#3311dd
a balanced, electric blue · warm · closest name: blue
RGB
51, 17, 221
HSL
250°, 86%, 47%
CMYK
77, 92, 0, 13
Luminance
0.0633
Every format
| HEX | #3311dd |
| RGB | rgb(51, 17, 221) |
| HSL | hsl(250, 86%, 47%) |
| CMYK | cmyk(77%, 92%, 0%, 13%) |
| LAB | lab(30.2 68.7 -92.0) |
| LCH | lch(30.2 114.8 306.7) |
| OKLCH | oklch(0.430 0.266 272.7) |
Copy-ready code
/* CSS */
color: #3311dd;
background-color: #3311dd;
/* Tailwind (arbitrary) */
class="text-[#3311dd] bg-[#3311dd]"
/* SCSS */
$brand: #3311dd;
/* SwiftUI */
Color(red: 0.200, green: 0.067, blue: 0.867)
/* Android */
Color.parseColor("#3311dd")Accessibility — WCAG contrast
Aa
#3311dd on white: 9.27:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3311dd on black: 2.27:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green6.7%
Blue86.7%
CMYK percentages
Cyan76.9%
Magenta92.3%
Yellow0.0%
Key (black)13.3%
Color previews
#3311dd text on a black background
contrast 2.27:1
Card sample
#3311dd text on a white background
contrast 9.27:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3311dd;
Background color
Panel with #3311dd background
background-color: #3311dd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3311dd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 17, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 17, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3311dd; background: linear-gradient(135deg, #3311dd, #BB11DD);