Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
Color Hunt - Curated collection of beautiful colors, updated daily
Autodesk SketchBook - SketchBook drawing and painting software provides designers, architects, and concept artists the tools to sketch ideas quickly and create beautiful illustrations.
Material Palette - Generate and export your Material Design color palette
Clip Studio Paint - The artist's software for drawing and painting.
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!