Why are most default forum themes blue?
The default vBulletin is blue; vB4 is a dark blue. My first phpBB2 installation was like a turquoise blue with orange highlights, and phpBB3 is a softer variation on that. SMF's default themes are blue in both the 1.1 and 2.0 versions, and even a few other systems I have tried are some shade of blue.
So here we are in 2011, and even XenForo's default is blue.
I prefer warmer, "earthier" color themes in my forums--two of my more recent forums use sort of a variation on caramel colors as the default. In a few cases, I have based a forum color scheme on a theme for the site (such as, on a band's official site, using the color themes from the CD booklet to skin the site and the forum).
But...why always the blue? Is it supposed to be more eye friendly? More professional? The blues here on XF are a bit softer than others. I particularly don't like the default darker greyish-blue that vB3 and SMF 1.1 use.
What are your preferred forum color themes?