Inline text color

Is there any way to use colored text when I respond inline to long emails? Also what can I do to see the inline text of a different color? Thanks

K9 produces text-only Mails => no color.
But also no heavyweight html-with-css-with-javascript rendering engine that uses tons of ram and is a fine attack surface for malware.

If you quote text using the pencil-shaped button chances are high that mails programs that use colors for quoted parts of mails will add color to the quoted parts, though.