Based on our record, EpicRuler should be more popular than QuickLens. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
You can check it out on https://epicruler.com. Source: about 2 years ago
For EpicRuler I'm using this code to get the luminance of a pixel, which I think could be used in your case too, you just have to convert the RGB part to HEX:. Source: about 2 years ago
QuickLens - All kind of nice to have designers tools. Ironically I don't want to buy it because of the UI and UX but I am not sure if there are any alternatives. Source: 11 months ago
PixelSnap - Measure every pixel on your screen with ease ✨
xScope - xScope is an excellent utility that is used to measure the graphic layouts or any application’s dimensions for checking the operating systems’ compatibility with the desktop screen.
Dimensions - Dimensions is a browser extension for coders to measure screen dimensions.
PixelSake - PixelSake is an excellent screen management program that allows users to select the different icons, objects, applications’ interface, and more with easy-to-use cropping tools or personalized specifications.
Red Lines Tools - This is a collection of tools created to help developers and designers build and inspect UI. But a lot of flexible settings make this app useful for a wide range of users
Bluegrams Screen Ruler - A lightweight and configurable ruler tool for Windows Desktop.