Alternative to Color Grab

Basically what the title says. I've been looking for an Android app that uses my phone's camera as an eyedrop tool to grab a color and show complimentary colors and such to no avail. I am currently using Color Grab but am looking for an open source alternative. It doesn't have to be free I am willing to pay for it. Thanks in advance for any replies, and sorry for posting this here if it's not the right place.