These sizes are relative, not absolute. "1" will always be the smallest font, and "7" the largest, but exact size will depend on the browser and on the user's settings.

Font face

The font most commonly used by default is Times New Roman. Font face can be changed by using the <FONT FACE> tag. For example:

Bear in mind that older browsers such as Netscape 2 do not display fonts other than the default, and that even newer browsers can only display fonts already on the user's computer.

Font colour

Font face can be controlled by using the <FONT COLOR> tag with the desired hexadecimal value:

Note the hash sign (#) before the hexadecimal value and the American spelling "color".

Color Center lets you experiment with coloured text and backgrounds and lists their hexadecimal values: http://www.hidaho.com/colorcenter/cc.html

Multiple font attributes

The following example shows how to control font size, face and colour at the same time:

Future of the <font> tag

The <FONT> element is "deprecated" in the HTML 4 specification, which means that it is likely to be dropped from future versions of HTML. Consider using style sheets to achieve control over font colour, face etc. See the Yenza! page on further Web development resources for links to Cascading Style Sheet resources:
http://www.nrf.ac.za/yenza/building/resource.htm