osem

https://github.com/opensuse/osem

Ruby

Open Source Event Manager. An event management tool tailored to Free and Open Source Software conferences.

FormatHelper#contrast_color

Returns black or white deppending on what of them contrast more with the
given color. Useful to print text in a coloured background.
hexcolor is a hex color of 7 characters, being the first one '#'.
Reference: https://24ways.org/2010/calculating-color-contrast

Source | Google | Stack overflow

Edit

git clone [email protected]:opensuse/osem.git

cd osem

open app/helpers/format_helper.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-FormatHelper-contrast_color-for-pr

# Commit to git

git add app/helpers/format_helper.rbgit commit -m "better docs for FormatHelper#contrast_color"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-FormatHelper-contrast_color-for-pr

hub pull-request

# Celebrate!