ColorHelpers

Add this line to your application's Gemfile:

gem 'color_helpers'

And then execute:

$ bundle

Or install it yourself as:

$ gem install color_helpers

<%= random_hex_color %> // prints a random hex color e.g. "#ff0000"

<%= hex_to_rgb(hex_color) %> // converts hex color string to rgb color string

<%= rgb_to_hex(rgb_color) %> // converts rgb color string to hex color string

hex_color argument accepts an input string e.g. "#ff0000"

<%= darken_color(hex_color, amount)  %> // amount: 0 to 1, default: 0.4

<%= lighten_color(hex_color, amount)  %> // amount: 0 to 1, default: 0.6

<%= contrasting_text_color(hex_color)  %> // Options: :monochrome, default: false

<%= color_to_grayscale(hex_color)  %> // converts color to greyscale

After checking out the repo, run bin/setup to install dependencies. Then, run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release to create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

1. Fork it ( https://github.com/mschneider85/color_helpers/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request