Hello, does anyone know a way to convert from rgb to hex. I want to pass hex colours to an arduino via bluetooth / serial port and to reduce the size of the output string I want to use hex numbers it will also save me from converting it from my css. From what I have searched every one wants to convert from hex to rgb. Also what is the colour scale used by ai2 for example Red is "4294901760" I got this number with the block below.