ColorQuery

There are many colors to mix with Color Query Pro for iPhone. 

When there are colors to mix and match, there is one app to use and that one app is Color Query Pro for iPhone. This app allows you to mix and match colors in RGB, CMYK, HSB colorspaces right in your device. 

The app also features sliders that you can use to adjust colors, color component bars for each colorspace, get colors using your device's camera, Store 5 color samples while using the app.

There are also 4 standard pallets to compare in RAL, Pantone, Wikipedia and Sherwin-Williams. 

You can shake your iPhone to see random colors and view colors on a full screen.