Using SVG to Create a Duotone Effect on Images

Creatives everywhere welcomed the 2016 new year with the spark of a colorizing technique popularized by Spotify’s 2015 Year in Music website (here is last year’s) which introduced bold, duotone images to their brand identity.
Well, thanks to the potentially life-saving powers of SVG, we can create these Photoshop-like “adjustment layers” with SVG filters.

Using SVG to Create a Duotone Effect on Images is a post from CSS-Tricks

Link: https://css-tricks.com/using-svg-to-create-a-duotone-image-effect/