41 colors belongs to one of three categories. These categories are mutually exclusive and can be used together.</p>
<ul>
<li>‘universal’ colors are the most common. This list includes white/black/grays/brown and the classic yellow, red, blue, and green colors. All brick sizes should be readily available in these colors.</li>
<li>‘generic’ colors are commonly used in LEGO products, though it might be more difficult to find every brick in these colors.</li>
<li>‘special’ colors are typically reser