I've never known why Tsukineko does not display their ink line in color wheel orientation as opposed to numeric lists, but these are their inks in maximum saturation colors as I have generally placed them in color wheel fashion. Bear in mind, they had 36 inks til a couple years back then added 9 so I added the 9 to the wheel I had already begun.
The middle of the wheel are colors I consider neutral brown-like or near black-like colors. Not shown is black, gray, white and metallics of which there are several.
The outer colors from the main clean colored circle are more tints/shades of the main more jewel tone clean colors. Maybe this will be helpful to some of you trying to make color selections. Double click on photo for a close up view with ink color numbers. Update: You are welcome to print this out if it helps. Happy Inking! Patt ( c ) copy write photo 7/2010