Material Palette - Generate and export your Material Design color palette
Web Gradients - Curated collection of 180 free fresh background gradients 🚀
Picular - Google, but for colors.
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.
Material @ Colorion - Material design compatible curated color palettes.
Mesh Gradients by ls.graphics - Free, handmade mesh gradients for your next project 🍭