Material Palett
Generate and export a color palette in the style of material design.
http://www.materialpalette.com/

New Flat UI Color Picker
The best colors for flat interfaces.
http://www.flatuicolorpicker.com/

Flat UI Colors
Beautiful colors in flat style.
http://flatuicolors.com/

Coolors: 
Super fast color scheme generator for cool designers.
https://coolors.co/

Skala Color
Unusual selection of colors.
https://bjango.com/mac/skalacolor/

Couleurs
A simple app to identify the colors you see on your screen.
http://couleursapp.com/

Material UI Colors
Material design color palette for Android, web and iOS
https://www.materialui.co/colors

Colorful Gradients
Automatic creation of gradients.
http://colorfulgradients.tumblr.com/

Adaptive Backgrounds
Highlight the dominant colors in an image.
http://briangonzalez.github.io/jquery.adaptive-backgr..

Brand Colors
Colors used by famous brands.
http://brandcolors.net/

Paletton
Create a color scheme.
http://paletton.com/#uid=1000u0kllllaFw0g0qFqFg0w0aF

0 to 255
A simple color search tool.
http://www.0to255.com/

Color Lovers
Create and share colors, palettes, and patterns.
http://www.colourlovers.com/

ISITLab Graphic Design
Exclusive and stylish creative that reflects the essence of your business
https://isitlab.com/ru/graphic-design

Adobe Color CC
Color combinations from the Kuler community.
https://color.adobe.com/ru/create/color-wheel/

Bootflat
Perfect colors in the flat style.
http://bootflat.github.io/color-picker.html

Hex Colorrrs
Converter from Hex to RGB.
http://hex.colorrrs.com/

Get UI Colors
Finding the right colors for interfaces.
http://getuicolors.com/

Coleure
Smart color selection.
https://www.coleure.com/

Color
Color palette generator.
http://colllor.com/

Palette for Chrome
Create a color palette from any image.
https://chrome.google.com/webstore/detail/palette-cre..