Aqua and cyan both have the same hex number value, so no matter which name value you use it will result in the browser displaying
the hex value #00ffff. The same thing happens with fuschia and magenta, the diplayed value is #ff00ff. (Handy if you always have an easier time spelling one than the other).
If you choose to code your web pages with string
literal values be aware that the pallet of browser safe string literal colors is limited
to the values shown above.