Module: Facades::SassExtensions::Color

Defined in:
lib/facades/sass_extensions/color.rb

Instance Method Summary collapse

Instance Method Details

#luminance(color) ⇒ Object

Check the luminance of color. This differs from lightness as it returns the actual values as ‘light’ and ‘dark’



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# File 'lib/facades/sass_extensions/color.rb', line 6

def luminance(color)
  assert_type color, :Color
  result = ((color.red * 299) + (color.green * 587) + (color.blue * 114) / 1000)
  Sass::Script::String.new( result >= 160 ? 'light' : 'dark')
end

#shade(color, dilution = Sass::Script::Number.new(50)) ⇒ Object

Shade a color by mixing it with black



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# File 'lib/facades/sass_extensions/color.rb', line 21

def shade(color, dilution = Sass::Script::Number.new(50))
  assert_type color, :Color
  black = Sass::Script::Color.new([0, 0, 0, 1])
  assert_type dilution, :Number
  mix(color, black, Sass::Script::Number.new(100 - dilution.value))
end

#tint(color, dilution = Sass::Script::Number.new(50)) ⇒ Object

Tint a color by mixing it with white



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# File 'lib/facades/sass_extensions/color.rb', line 13

def tint(color, dilution = Sass::Script::Number.new(50))
  assert_type color, :Color
  white = Sass::Script::Color.new([255, 255, 255, 1])
  assert_type dilution, :Number
  mix(color, white, Sass::Script::Number.new(100 - dilution.value))
end