#3355bb
a balanced, vivid blue · warm · closest name: royalblue
RGB
51, 85, 187
HSL
225°, 57%, 47%
CMYK
73, 55, 0, 27
Luminance
0.1079
Every format
| HEX | #3355bb |
| RGB | rgb(51, 85, 187) |
| HSL | hsl(225, 57%, 47%) |
| CMYK | cmyk(73%, 55%, 0%, 27%) |
| LAB | lab(39.2 23.4 -57.4) |
| LCH | lch(39.2 62.0 292.2) |
| OKLCH | oklch(0.485 0.166 266.3) |
Copy-ready code
/* CSS */
color: #3355bb;
background-color: #3355bb;
/* Tailwind (arbitrary) */
class="text-[#3355bb] bg-[#3355bb]"
/* SCSS */
$brand: #3355bb;
/* SwiftUI */
Color(red: 0.200, green: 0.333, blue: 0.733)
/* Android */
Color.parseColor("#3355bb")Accessibility — WCAG contrast
Aa
#3355bb on white: 6.65:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3355bb on black: 3.16:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green33.3%
Blue73.3%
CMYK percentages
Cyan72.7%
Magenta54.5%
Yellow0.0%
Key (black)26.7%
Color previews
#3355bb text on a black background
contrast 3.16:1
Card sample
#3355bb text on a white background
contrast 6.65:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3355bb;
Background color
Panel with #3355bb background
background-color: #3355bb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3355bb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 85, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 85, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3355bb; background: linear-gradient(135deg, #3355bb, #6C33BB);