The use of color is important on your landing pages.
No doubt you already accept that certain colours convert better (bing blue for your CTA) then others.
However, what you might not realize is that colors have different meaning to different cultures.
So if your an affiliate focussing on international markets outside your home country, check out this great info graphic.
84 empotions / perceptions as used in 10 cultures
Excellent find.
This can be used to complete a color pallete: http://www.colorhunter.com/