I wanna to translate rgb to midi notes

Sooo, i wanna use OSC with grandMA2, with midi, but especialy the rgb widget i wanna to make a midi note, like R = 1,1 ; G = 1,2 ; B = 1,3

Welcome to the community. I think the issue you'll have with that is 7-bit vs 8-bit values. RGB values are typically 0-255 but MIDI data is only 0-127. In order to send 8-bit MIDI values you'll need to send 2x MIDI messages per color.