Adobe Color CC - Generates color themes that can inspire any project.
AngryTools Online Gradient Generator - Angrytools - Online CSS Gradient Generater interface to generate cross browser CSS gradient code as well as Android gradient code. generator produce linear or radial gradients that can be used in your web page design or android apps.
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!
Gradient Hunt - Curated collection of beautiful gradients, updated daily
Paletton - Color Scheme Designer
Adobe Capture - Turn any photo into a color theme, Look, vector graphic, or unique brush that you can use in your creative projects with Adobe Capture.