Really noob question here but I've always known orange next to an amount of damage to mean the ability gets an AD bonus while the color green grants an AP bonus. I recently noticed Ryze has a blue color in his abilities granting him a bonus based on mana while Nasus has a dark blue/purple in his siphon giving the move a bonus based on how many last hits he gets with that move. But what do the other colors mean? I've noticed a light blue on one of Sivir's moves and I've noticed a lot of red's lately. Is there a guide possibly explaining what every color means for the bonus?

Blue and yellow tend to be more interchangeable, they don't always mean the same thing.
Ryze and Nasus you obviously already know.
There are others out there like Rammus and Malphite who deal more damage the more armor they stack (generally a yellow number). Sivir doesn't have a secondary resource as far as I know.. haven't played her in a while though. Red should be AD as well, you might be seeing differences in colour which aren't actually there.

I haven't seen a guide floating around for this. For a specific character you can check champion information in the Game Info section on this site, generally it will be written somewhere on the skill itself.

EDIT: Can't believe I forgot red was health. I've played mid and support for far too long.

green is AP, orange is AD, red is HP, blue is mana/siphon, yellow is armor


Best Luck Always =)

Thanks for the help.

I really like the quote Sara. It's just so true.

I think that's her signature.... she always posts it.

I am level 30 and was wondering the same thing in the same context as OP (with nasus)
thanks guys xD

I'm level 30 as well. I've just never played Ryze, Nasus, Malph, Rammus, or anyone with a different bonus until just recently.

i saw that there was a Purple on the Randuin shield item and was wonderin if anyone knows what purple means. i know most of the others but purple threw me off. i dont remember what Magic resistant was so i had a feelin it might be it... not to sure. i did however get some with it and it went from. .2 to .3 not much for me to confirm it though

Aaaand this is why you don't post in old threads, because information is often outdated at the time.