There are 10 tones among which:
The blue contains: Turquoise, Cyan, Sky blue, Royal blue, Azure, Denim, Sapphire, Blue, Indigo, Blueish purple and their variants.
Yellow contains: Orangey yellow, Gold, Yellow, Mustard and their variants.
The red contains: Redcurrant, Red, Vermilion, Orangey Red, and their variants.
(This information was originally posted in the News section when the Trophy Room became available. Since I never look for it there and the news is constantly getting updated, I figured I'd post it here, too, where it makes sense for it to be.)