64 x 64 RGB LED Matrix Panel Colors

Hello I got a 64x64 DFR Robot Matrix panel RGB.

I can acces 256 colors by using Color333(R,G,B) The values of R G and B are inside [0,7]

I see that with ColorHSV i can acces more colors, but it is difficult for me to code in HSV.

Is it possible to acces 4096 colors or more ? With wicth fonction ?

Thanks for your help