Color Wheel

Color Wheel is a specialized coloring tool for flat grayscale graphics, not a general color palette generator. It uses machine learning to apply colors to uploaded grayscale logos, icons, or flat illustrations, with preset templates such as dribbble style, vintage posters, and pixel art. The user needs to prepare a flat design with a limited color count (ideally under 10) in grayscale. After uploading, you can adjust hue and saturation parameters to get different color variations. The barrier is low; no painting skills required, suitable for designers or non-designers who need quick color exploration. It suits graphic and UI designers prototyping color options. Not suitable for photo coloring, complex realistic illustrations, or print work requiring precise color management. It is not a palette generator but a purpose-built assistant for coloring existing grayscale flat art. Evidence is limited, mostly from a 2018 in-depth article and some tool listing recommendations; recent tutorials or community reviews are scarce. It is conservatively inferred to be free, but no official pricing details are available.