Americans prefer simple, unadorned colors, says Rabbani.

FORBES: Magazine Article

The Google logo, on the other hand, is iconic itself, using a series of primary colors and simple font to read.

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This can be as simple as testing different colors of a button on the same page and noting which color drives the most conversions.

FORBES: Want Results? Become Obsessed With Data

The simple use of typography and colors can work to your advantage.

FORBES: Presentation Cleanse

" Already, these social bots are being used on an experimental basis to teach various skills to preschool children, "including the names of colors, new vocabulary words and simple songs.

ENGADGET: blogger-avatar

With the picture snagged, a simple art interface comes up, with options for colors, pen types, undo, save and so on.

ENGADGET

What seems simple has taken years of research to overcome the problem of reading different eye colors and allowing for head movement so people can relax while using the systems.

CNN: Watch this space: Eye-control to give technology a new look