>Yellow only has one vote
(http://1.bp.blogspot.com/-J0JavNwcJ3A/Tbn9jUGlEGI/AAAAAAAAAjA/WbS0v-Ax_Tc/s1600/disappointed+monkey.jpg)
Green looks like laughter to me.
Yellow looks joyful.
Red looks serious and scary.
Blue looks calm.
Orange looks... appealing?
Purple looks scary to me.
White is no emotion.
Black is an unknown emotion.
Giygas was in Red and Black. That's a good example on how those two colors are evil.
Color meanings for moi:
Red - Strength, Courage
Blue - Wisdom, Familiarity
Yellow - Warmth, Security
Green - Nature, Serenity
Orange - Strange, Interesting
Purple - Royal, Poisonous
Brown - Death, Aging
Pink - Frivolous, Gentle
Black - Torment, Fallen Nature
White - Purity, Peace
Really though, I don't see any color as "Evil". Red has more of a heroic nature to me, and Black makes me think more along the lines of fallen-hero type.
Purple = Poisonous?
(http://images1.wikia.nocookie.net/__cb20101027034121/fantendo/images/thumb/f/f1/PoisonMushroom.png/120px-PoisonMushroom.png)
I can see the logic there
But royal you say? I associate royal with gold and red, not purple.
Purple also equals this:
(http://dreager1.files.wordpress.com/2010/08/waluigi_will_get_you_next_time_by_masterfury.jpg)
Waluigi time!