This colour chart shows the 216 colours that can be displayed
correctly by Netscape. The top line in each box shows the code
that you should use in order to obtain that particular colour.
For example:
<body bgcolor="#990033">
Netscape can display other colours, in addition to this standard 216 range, but this is usually achieved by a process known as "dithering", which involves mixing pixels of the other colours together in order to achieve approximately the correct effect. This normally looks unsatisfactory and "grainy", so it is good practice to stick to the standard 216-colour palette wherever possible.