The shapes are the secondary indicators.

Most color blind people don't even know they're colorblind. They use other indicators — shapes and value, mostly — as indicators and think that's what everyone else sees. Note the differences between a Yield sign and a Stop sign. The words, the color, and the shape are all different.

Making sure that a color/shape combination is consistent is the key.

-J

On Jul 30, 2009, at 12:44 PM, Stefano Tacchi wrote:

Are you sure these colors are color blind safe? they cannot be
confusable colors.

On 7/30/09, Dave Crossland <[email protected]> wrote:
2009/7/30 Joshua A.C. Newman <[email protected]>:

Using colored shapes to differentiate would be much better (e.g. iChat's
status markers)

Right - red circle for GPL, blue square for OFL, orange triangle for MIT?



--
Stefano

Joshua Newman Design
401.225.7222

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