A 17ml bottle of Vallejo Game Color 22 Ultramarine blue
Vallejo Game Color paints have rapidly gained their laurels as the best acrylic paints on the market. They come in 17ml bottles with a unique "eye-dropper" nozzle design, so that you can control exactly how much paint you use.
Vallejo acrylic paints can be mixed with each other (and other makes of acrylic paint, too !) and are designed to be thinned with water. Although you can use them neat, the pigments are more finely milled and more concentrated than other manufacturers, so you can dilute them quite a lot before you lose opacity and adhesion (the inks in the Game Color range, with the exception of the black ink, are translucent). Brushes can be cleaned in water as long as you remember to do it before the paint dries !