class Sass::Value::Color::ColorChannel

def analogous?(other)
  case [name, other.name]
  in ['red' | 'x', 'red' | 'x'] |
     ['green' | 'y', 'green' | 'y'] |
     ['blue' | 'z', 'blue' | 'z'] |
     ['chroma' | 'saturation', 'chroma' | 'saturation'] |
     ['lightness', 'lightness'] |
     ['hue', 'hue']
    true
  else
    false
  end
end

def initialize(name, polar_angle:, associated_unit: nil)
  @name = name
  @polar_angle = polar_angle
  @associated_unit = associated_unit
end

def polar_angle?
  @polar_angle
end