However, most designers ignore color names entirely, using hex all the time for
consistency??™s sake??”a practice that the W3C recommends.
WEB COLOR REFERENCE
449
B
C ENTITIES REFERENCE
Generally speaking, characters not found in the normal alphanumeric set
must be added to a web page by way of character entities. These take the
form &#n;, with n being a two- to four-digit number. Many entities also have
a name, which tends to be more convenient and memorable; these are also
listed. However, entities are case sensitive, so take care when adding them
to your web pages.
Although most browsers display nonalphanumeric characters when the
relevant encoding is specified, it??™s sometimes necessary to use entities to
ensure your page displays as intended across a large range of machines.
Most reference guides tend to list entities in numerical order, but I find
it more useful to browse by grouped items, so I list entities alphabetically
within sections such as ???Common punctuation and symbols??? and ???Characters
for European languages.??? (The exception is for Greek characters, which I??™ve
listed in the order of the Greek alphabet, rather than in alphabetical order
from an English language perspective.)
Characters used in XHTML
The less-than and ampersand characters are used in XHTML markup, and to avoid invalid
and broken pages, these should be added to your web pages as entities. It??™s also common
(although not required) to add greater-than and quotation marks as entities.
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