Blue it is for me as well.

@Berte what you're describing about certain numbers and letters relates to Synethesia where the senses are cross-wired. Some musicians see certain colors when they hear particular notes and chords. Some people cross-relate numbers and letters with particular colors. It's a very interesting disorder.

One of many links on this disorder:
http://www.metafilter.com/25146/Smel...earing-numbers

John