#3377aa
a dark, vivid blue · cool · closest name: steelblue
RGB
51, 119, 170
HSL
206°, 54%, 43%
CMYK
70, 30, 0, 33
Luminance
0.1680
Every format
| HEX | #3377aa |
| RGB | rgb(51, 119, 170) |
| HSL | hsl(206, 54%, 43%) |
| CMYK | cmyk(70%, 30%, 0%, 33%) |
| LAB | lab(48.0 -4.4 -33.4) |
| LCH | lch(48.0 33.7 262.5) |
| OKLCH | oklch(0.549 0.105 244.2) |
Copy-ready code
/* CSS */
color: #3377aa;
background-color: #3377aa;
/* Tailwind (arbitrary) */
class="text-[#3377aa] bg-[#3377aa]"
/* SCSS */
$brand: #3377aa;
/* SwiftUI */
Color(red: 0.200, green: 0.467, blue: 0.667)
/* Android */
Color.parseColor("#3377aa")Accessibility — WCAG contrast
Aa
#3377aa on white: 4.82:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3377aa on black: 4.36:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green46.7%
Blue66.7%
CMYK percentages
Cyan70.0%
Magenta30.0%
Yellow0.0%
Key (black)33.3%
Color previews
#3377aa text on a black background
contrast 4.36:1
Card sample
#3377aa text on a white background
contrast 4.82:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3377aa;
Background color
Panel with #3377aa background
background-color: #3377aa;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3377aa;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 119, 170, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 119, 170, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3377aa; background: linear-gradient(135deg, #3377aa, #3E33AA);