http://twitter.com/usayama/status/27311501545

http://livedoor.blogimg.jp/aomegane1/imgs/0/5/05683d87.JPG

http://www.webcreatorbox.com/tech/design-colorblind-users/ 自分も赤と緑が弱い色覚異常なので分かる。

http://blog.livedoor.jp/hitoshione/archives/51181360.html

http://ikuzi2.blog73.fc2.com/blog-entry-1393.html

http://alfalfalfa.com/archives/1078210.html