Method: Colorist::Color#to_grayscale

Defined in:
lib/colorist/color.rb

#to_grayscale(formula = :w3c) ⇒ Object

Converts the current color to grayscale using the brightness formula provided. See #brightness for a description of the available formulas.



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# File 'lib/colorist/color.rb', line 209

def to_grayscale(formula=:w3c)
  b = brightness(formula)
  Color.from_rgb(255 * b, 255 * b, 255 * b)
end