If you enclose a bullet (asterisk) or number (hash sign) wiki markup in a color tag, it will fail to render the bullet or hash. Similarly, if you enclose the wiki markup for a table in the color tag, it will fail to render the table properly. Some examples:

{color:blue}
* This should be a bullet in blue. (Not okay.)
{color}

{color:green}
# This should be a numbered item in green. (Not okay.)
{color}

Makes this:

* This should be a bullet in blue. (Not okay.)

# This should be a numbered item in green. (Not okay.)

Also:

{color:red}
h1. Heading (Wrong: not rendered)
*bold* _emphasis_ ??citation?? -deleted- +inserted+ ^superscript^ ~subscript~ {{monospaced}} (Okay)
{quote}quoted text (Wrong: not in color){quote}
||Table Heading (Wrong: table not rendered)||
|Cell Text|
{color}

h1. Heading (Wrong: not rendered)
bold emphasis citation deleted inserted ^superscript _subscript monospaced (Okay)

quoted text (Wrong: not in color)