This is my longest-running project, a color chart. I'm using 3001 2x4 bricks as the ideal base sample. At the moment I'm trying to avoid variations within a single color (Pearl Gold, I'm looking at you), unless they are markedly different or a prominent site distinguishes the two. I started with the Bricklink color chart, and added colors from the Peeron chart, BL color notes, and other places around the internet.
Color Chart by eldeeem, on Flickr
It's NOT complete, and may never be. Here are the colors I know I'm missing, off the top of my head:
Red Pink (from Peeron's chart; Clikits only)
Light Pink (The only BL color I'm missing)
Transparent Bright Yellowish-Green (Similar to BL's Trans-Bright Green, pre-Atlantis)
Titanium Metallic (I have this, but forgot to add it before taking photos)
Pearl White (Clikits version)
Duplo Ochre Yellowish color
Please let me know if you know of any other colors, or if you want to trade some of the colors I'm missing!
Anyone? Anyone? Aanchir? ;P
Cheers!
-Ryan H.