# File lib/color/rgb.rb, line 159 159: def to_yiq 160: y = (@r * 0.299) + (@g * 0.587) + (@b * 0.114) 161: i = (@r * 0.596) + (@g * -0.275) + (@b * -0.321) 162: q = (@r * 0.212) + (@g * -0.523) + (@b * 0.311) 163: Color::YIQ.from_fraction(y, i, q) 164: end