Posted on August 26, 2015 Blog, animation, coding, css, tutorials CSS: Grayscale to colourisation with Animation A simple CSS trick that turns an image from Grayscale to colourisation. See the Pen Colorize image by Darryl Dias (@Darryl) on CodePen. This adds Grayscale filter to the image, and lets you hover on to turn it into colour. Have a question? leave a comment below.