Rails gem version of Pick-a-Color JavaScript library = jQuery based color picker optimized for Twitter Bootstrap 3.
Source: https://github.com/lauren/pick-a-color
Add into your Gemfile
gem 'pick-a-color-rails'
Add into your application.js
//= require pick-a-color.min
Add into your application.css
*= require pick-a-color.min
In your Rails directory run
bundle install