Two to three parts yellow and one part blue will give you a bright, lime green.
Two parts blue and one part yellow will give you turquoise.
Phthalo blue (Green Shade) and Cadmium yellow light Phthalo blue (Green) & Hansa yellow (also called Lemon yellow)
Ultramarine blue & Cadmium yellow light Ultramarine blue & Yellow ochre Ivory black & Cadmium yellow light Prussian blue & Yellow ochre Burnt umber & Cadmium yellow light
Blue can be a very intense color. Start with a pinhead-sized drop first.
