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ColorHub

ColorHub is a color pallets and preview tool that allows you to choose from pre-made palettes or create your own and then preview it on one of ColorHub starter kits.

Palettemaker

Palettemaker is a color tool that allows you to create color palettes and test their behavior in pre-made design examples from the most common creative fields, such as Logo design, UI/UX, Patterns, Posters, and more.

Coolors.co

Coolors is a color palette app and website that generates color schemes for all design needs. It can generate palettes, gradients, check contrast, and find fonts.

Dopely Colors

Dopely Colors is an app for anything related to colors that offer different color tools like a palette generator, gradient generator, color wheel, color mixer, color converter, tone generator, contrast checker, and many more.

Shadowlord

Shadowlord is a simple color tint and shade generator that allows you to enter any percent from 1 to 100 to control your output.

Huemint

Huemint is a palette color generator that uses machine learning. It lets you instantly visualize your color scheme in a logo mockup, website, or illustration.

Color Leap

Color Leap is a collection of 180 color palettes showcasing colors used throughout 12 historical eras. Each palette was created by sampling pieces of artwork from the time period.

Adobe Capture

Adobe Capture is a photo converter app that can easily turn any photo you take with your phone into color themes, patterns, 3D materials, vector-based shapes, custom brushes, and more.

Color Psychology by Nick Kolenda

This great comprehensive article from Nick Kolenda's blog will teach you the color psychology in marketing, what each color means, how colors influence us, and more.

Adobe Color

Adobe Color is an online tool that allows you to make, browse, and save color palettes using a color wheel or extraction of colors from an image.