Color
Dribbble Colors
https://dribbble.com/colors/?ref=todaydojo
Dribbble Colors is a hidden treasure for UI designers who are looking for case studies of color adoption. It allows users to search Dribbble shots by color using hex code. Users also can adjust percentage of the containing color within a shot. This tool comes handy to see how a color plays out in other design.
Explore related resources
Colorbook
Colorbook converts colors easily to any printing and coding format. It also visualises color pairing as web design color scheme.
Adobe Capture CC
Capture photos and auto convert real-life hues into color palettes with Adobe Capture CC. It also directly integrates to to your Adobe CC's swatches if you are a subscriber.
Supa Gradient
Supa Gradient plugin allows you to create and manage gradients