Birdy

Cowboy Bebop

Dragonball

Flame of Recca

Gundam Wing

Hunter x Hunter

Inuyasha

Mononoke Hime

Oddments

Outlaw Star

Ranma 1/2

Rurouni Kenshin

Trigun

Yuu Yuu Hakusho

Mood indigo
OK, it's more purple than indigo, but I couldn't resist. I love the colors in this cel, the bold purple contrasting with the quieter shading on the character.
 
Added: 5/22/02 From: Anime Taro
 
Mood indigo