Just Color Picker is a practical tool that lets you get all the information necessary on a determined colour shown on-screen. It is ideal for graphic designers, as with Just Color Picker you can identify the type of colour, knowing the exact value in HTML, RGB, HEX, HSB/HSV and HSL.
It works very simply and, above all, quickly. Once Just Color Picker is open you just have to indicate the colour in question with the mouse cursor, and Just Color Picker will show you all the values. It includes a small viewer that works like a magnifying glass to help you identify the colour you want. Once you have it, you can copy the results to the Windows clipboard to quickly use it.
To make your job easier, you can capture any colour you see on-screen via a combination of keys, which you can combine, but which as default are Alt + X. Just Color Picker also shows you a range of colours similar to the chosen one, or that go with it, so you can combine them to your taste when, for example, creating a webpage.