I worked up a little rune library yesterday (boy I'm glad it's over with*), but before I put everything up I died a bunch of books all the possible runebook colors from a tub. It's great for seeing your options and also it is good to compare in case you think you have a neon book but aren't sure.
FYI the runebook tub also uses the same colors as a leather tub, so this is also handy for knowing what color leathers you can have. Enjoy!
*I say that, but I'll probably redo it since I'm not totally happy with how it came out. I thought it would be cute to put stuff in the gaps between book sections but it just came out...gappy. I'll rework it I'm sure.

FYI the runebook tub also uses the same colors as a leather tub, so this is also handy for knowing what color leathers you can have. Enjoy!
*I say that, but I'll probably redo it since I'm not totally happy with how it came out. I thought it would be cute to put stuff in the gaps between book sections but it just came out...gappy. I'll rework it I'm sure.