how to define a color in html code example

Example 1: how to change color in html

<font color="red">This is some text!</font>

Example 2: possible colors used for html

#FFEFD5 (PAPAYAWHIP)   and

#556B2F (DARKOLIVEGREEN)

...are not web safe colors. They would get shifted to

#FFFFCC (NOT PAPAYAWHIP)   and

#666633 (NOT DARKOLIVEGREEN)