I love all the color combos mentioned. I am not much for the muddy colors either. I don't like grays and creams much. I feel they are non colors rather than colors. Silver is a "color" that to me is a non color.
White is good for contrast but not something I would use in my quilt blocks much. I always worry it will look dirty after use and I feel the same about creams.
I like small to med floral prints. If I see a larger floral print I think of it for a Dresden Kaleidoscope but not for quilt blocks in general. I guess I am always drawn to country colors or black and white mostly.
I have 6 shelves for my main colors I use the most. Black Green Purple Blue Red Brown and I have recently been buying some yellows.
But I also have shelves of things people have sent me and I did buy some batiks to play with. however I haven't really done much with them. I also bought some 1930s repros.
I used to always use the darker colors as the lady I sold to wanted them to be int he Amish style. but she closed the store a couple of years ago and I have been playing with more lighter to bright colors lately.
I was not allowed to use pinks or yellows or browns and I have been having fun finding the light colors I couldn't use before.