Adobe's on-line color 'wheel'

[Didereaux]

Not so much an article as a very useful resource. Play with this a bit there is a myriad of combinations to examine. I find it extremely useful, maybe someone else will as well.
Adobe Color CC

 

[Scatterbrained]

+1.

That used to be known as Kuler, and yeah, it's a great tool. It should still be in Photoshop as an extension (I'm running CS6 and it's there for me).

 

[dennybeall]

Fascinating tool. Not sure how it would be used in day to day work?

 

[Scatterbrained]

Fascinating tool. Not sure how it would be used in day to day work?

Color grading. It's useful to help determine what colors will best compliment the primary colors of your scene. Or when you're building your shot you can use this to determine what colors to use to best compliment your subject.

 

[RitchieE24]

I use this all the time at work! Being a half colour-stupid (i.e. blind), I use this as a bit of a helper with my design stuff. I use a lot of colour so it's nice to not have to think as hard at it, or get someone else with eyes (one of the lovely ladies) to make sure I haven't created a colour-blind "masterpiece".