A CodePen by Bram de Haan. HSLa colour picker/converter - Forked this from:  http://codepen.io/nickcolley/full/qsDrn

Original javascript by Estelle Weyl for HSLA Color Picker / RGBA Converter:
* http://www.standardista.com/hsla-color-picker/
* https://github.com/estelle/HSLA-Color-Converter

Nick Colley, (http://codepen.io/nickcolley/ ) attempted to recreate http://dribbble.com/shots/1068999-Brightness-regulation-UI-design-PSD