Colorway help?

I'm really bad at picking color combinations, so I'd love some help. I want to crochet a temperature blanket. I would like to use 10 of these colors, with color #9 (off-white) as the border. I'll be making hexagons which will have the high & low temp for each day. I'm thinking greens/blues for low temperatures, moving up through purples, then pinks for high temperatures, but I'm having a lot of trouble narrowing down which specific colors to use.

Any help would be appreciated!