https://hexcolor.co/color-picker
https://medium.com/@sheribyrnehaber/color-blindness-considerations-for-designers-and-content-managers-a767ab38a825
https://maketintsandshades.com/
https://refactoringui.com/previews/building-your-color-palette/?ref=webdesignernews.com
http://www.colorzilla.com/
https://codepen.io/meodai/full/RerqjG/
https://www.uber.design/case-studies/rebrand-2018
https://picular.co/
http://findguidelin.es/
http://briangonzalez.github.io/jquery.adaptive-backgrounds.js/
https://sarcadass.github.io/granim.js/index.html
https://codepen.io/quasimondo/pen/lDdrF
https://codepen.io/patrickcameron/pen/bVYdQx
https://blotter.js.org/
https://pigment.shapefactory.co/
https://swatchesapp.io/
http://school.readymag.com/
http://khroma.co/
http://giantrobot.army/gamut/
https://usecontrast.com/
