Nix is primarily known for their Pro Color Sensor, which also comes in a Mini version. These design tools are both compact devices that can determine the exact match of any color you set them on. Both versions even allow you to scan colors and match them to existing color libraries. It's great if you're trying to illustrate something you have in front of you and can't quite get the right color, or if you need to re-paint your walls and can't remember which color you used last time. The Pro version even lets you grab CMYK, HEX, sRGB, CIELAB, LCH, and LRV values, which is why it's such a go-to among designers.