The HID Color Chart If you are looking to buy High Intensity Discharge lighting then you should first take a look at a HID color chart in order to find out which HID colors are the best ones for your need. The HID color chart describes the different HID colors of light in terms of Kelvin. Kelvin what? A Kelvin is a unit of measurement that describes color temperature. It can be used to measure the hue of the lights in a HID kit. In most cases, HID kits are made available with colors ranging read more..