Winsor & Newton Winton Oil Color, 37ml (1.25-oz) Tube, Cerulean Blue

These aren't the top of the line but the quality is excellent and you'll have a tough time finding complaints. When reading reviews, keep in mind that some negative reviews are based on beginner experience and wold apply to any oil paint. I've ordered many of these from Amazon and even the more obscure colors have minimum separation. Caps are plastic but of good quality. Pigment seems to be properly milled and oil content seems consistent across colors. I have noticed the 200ml sizes seem a little softer but not to the point of interfering with my painting process. As long as you're using turpentine, even the thinnest glazes retain a smooth, uniform color.

Excellent

This was bought along with brushes of the same brand. From what I heard they work well together. Will recommend to others.

The quality of Cerulean Blue of Winsor and Newton Winton is seriously not good. Had to purchase it again from a different brand. Though other colors work well.