#3311aa
a dark, electric blue · warm · closest name: navy
RGB
51, 17, 170
HSL
253°, 82%, 37%
CMYK
70, 90, 0, 33
Luminance
0.0401
Every format
| HEX | #3311aa |
| RGB | rgb(51, 17, 170) |
| HSL | hsl(253, 82%, 37%) |
| CMYK | cmyk(70%, 90%, 0%, 33%) |
| LAB | lab(23.7 55.3 -72.8) |
| LCH | lch(23.7 91.4 307.2) |
| OKLCH | oklch(0.368 0.212 278.1) |
Copy-ready code
/* CSS */
color: #3311aa;
background-color: #3311aa;
/* Tailwind (arbitrary) */
class="text-[#3311aa] bg-[#3311aa]"
/* SCSS */
$brand: #3311aa;
/* SwiftUI */
Color(red: 0.200, green: 0.067, blue: 0.667)
/* Android */
Color.parseColor("#3311aa")Accessibility — WCAG contrast
Aa
#3311aa on white: 11.66:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3311aa on black: 1.80:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green6.7%
Blue66.7%
CMYK percentages
Cyan70.0%
Magenta90.0%
Yellow0.0%
Key (black)33.3%
Color previews
#3311aa text on a black background
contrast 1.80:1
Card sample
#3311aa text on a white background
contrast 11.66:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3311aa;
Background color
Panel with #3311aa background
background-color: #3311aa;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3311aa;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 17, 170, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 17, 170, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3311aa; background: linear-gradient(135deg, #3311aa, #9911AA);