Orange

Orange is the color that denotes children with powers similar to those of Ruby. These powers are generally more dangerous than some. Most who are classified as orange are killed or moved to high security camps.

Blue

Blue is the color used to designate the children with less dangerous powers. Lee is a blue, and he has the ability to move things without touching them. Those with blue powers are typically allowed to move about the prison camp without shackles.

Green

Green is the color used to designate children with enhanced mental capabilities. When Ruby is called on by Lee and Chubs to explain why she is classified green, she lies, saying she has the ability to break codes.

Yellow

Suzume is a yellow, and this color denotes a set of fairly dangerous children. When Ruby, Suzume, Lee, and Chubs are being attacked, Suzume slings a...