image-color.com is described as 'Find your color using our image color picker. Click on the image to get color in HEX, RGB, HSL and CMYK format. You can also generate a color palette from an image' and is an website in the Photos & Graphics category. There are more than 10 alternatives to image-color.com, not only websites but also apps for a variety of platforms, including Mac, Windows, iPhone, iPad and Apple Watch. The best alternative is Just Color Picker, which is free. Other great sites and apps similar to image-color.com are gpick (Free, Open Source), Instant Color Picker (Free), Pika (Free Personal, Open Source) and ColorPicker by canerozdemircgi (Free, Open Source).
Pika (pronounced pi·kuh, like picker) is an easy to use, open-source, native colour picker for macOS. Pika makes it simple to quickly find colours on screen, in the format you need, so you can get on with being a speedy, successful designer.
A tiny & delightful color picker for designers. - save time with one-click to copy - choose the perfect pixel when you hold control key - keep it simple with hex values only - declutter your dock with one less app