ColorContrast.ex

An Elixir library to select black or white depending on the contrast to a hexadecimal background color.

Installation

The package can be installed by adding color_contrast to your list of dependencies in mix.exs:

def deps do
  [
    {:color_contrast, "~> 1.1"}
  ]
end

The docs can be found at https://hexdocs.pm/color_contrast.

Usage

Give it a hexadecimal string:

iex> ColorContrast.calc_contrast("#000000")
{:ok, "#FFFFFF"}

License

MIT