Adobe Color CC - Generates color themes that can inspire any project.
Web Gradients - Curated collection of 180 free fresh background gradients 🚀
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!
CSSGradient.io - As a free css gradient generator tool, this website lets you create a colorful gradient background for your website, blog, or social media profile.
Paletton - Color Scheme Designer
Mesh Gradients by ls.graphics - Free, handmade mesh gradients for your next project 🍭