Class: ColourConverter::ColourChanel

Inherits:

Object

• Object
• ColourConverter::ColourChanel

Defined in:

lib/colour_helper.rb

Overview

An individual colour chanel, eg. red, green or blue

Instance Method Summary

• #initialize(hex_value) ⇒ ColourChanel constructor

  A new instance of ColourChanel.

• #luminance ⇒ Object

Constructor Details

#initialize(hex_value) ⇒ ColourChanel

Returns a new instance of ColourChanel.

# File 'lib/colour_helper.rb', line 28

def initialize(hex_value)
  @value = hex_value.hex / 255.0
end

Instance Method Details

#luminance ⇒ Object

# File 'lib/colour_helper.rb', line 32

def luminance
  @value <= 0.03928 ? @value / 12.92 : ((@value + 0.055) / 1.055)**2.4
end