[sleepysort]

The color palette was pretty random haha; if you have a better color scheme to recommend, I'd love to see it! And I'm currently trying to find a good balance for size and speed such that the game is very challenging, but not impossible.

[kornakiewicz]

Checkout this: http://clrs.cc/

and try not to use similar colors after each other.

[kaoD]

Whichever color scheme you choose, make sure it works for colorblind folks too! I'm not colorblind myself, but I know it's a good source of frustration for them.

[hawleyal]

I don't think that is possible, given how many different colors this generates.

[sleepysort]

As the colors are purely for aesthetic purposes, this shouldn't be too much of an issue. As long as it is pleasing to the eye for them!

[hawleyal]

I don't think the colors are for aesthetic purposes. They describe meaning for how large and fast the objects are.

[knd775]

I guess this is true, as long as the colors do appear differently to them.

[krat0sprakhar]

Here use this - http://llllll.li/randomColor/