This post will introduce to you two online color extraction and generation tools.
Color extraction Lab
You can access Color Extraction Lab here: https://labs.tineye.com/color/
This online color extractor uses MulticolorEngine to identify the colors from uploaded or linked images, which lists a color palette with detailed information of hex color codes, area proportions, and closest color names.
See the following pictures for reference.
You can access Coolors.co from: https://coolors.co
As the website says, it offers “The super fast color schemes generator!” Users can generate a random color scheme in seconds and apply the selection towards their design. From the start page of the website, users are shown with a wide range of color schemes and prompted to use the generator.
The following picture is a randomly generated scheme by simply pressing the spacebar.
Users can also upload images and pick a particular color.
Step 1: Click the camera icon on the top right corner.
Step 2: Upload an image and move the circle to pick one color from the image.
Step 3: Press OK and wait for the scheme to be generated, with your picked color.