Within all this accumulation of work, Stan Sakai has published a small portion of Usagi Yojimbo stories in color, including some water-color stories and some stories released in miscellaneous Color Specials, as well as some others.
I have a "Tomoe's Story" poster and some of the french Usagi Yojimbo postcards to give to the person to provide a complete list of story titles for all the Usagi Yojimbo stories which were originally published in full color.*

¡KA-BOOM! ESTUDIO
Para Karmatrón: Y Los Transformables #3 (Enero 2003)
*the black, white, and orange segment of "Nocturnals: Troll Bridge" in which Usagi appeared does not count.