First off, just to be clear you probably mean RGB; in French it's rouge, vert, and bleu, in English it's red, green, and blue.
We had a thread about this before, it was about the GB instead of GBP but the only visual difference is that the GB had a green tint. I'll explain it again here though.
The console uses 2 bits for its colours, which is 4 colours total:
00 = 0
01 = 1
10 = 2
11 = 3
0 is black, 3 is white, and the others are the intermediate greys. Therefore in terms of RGB codes they would probably be:
0 = #000000
1 = #555555
2 = #AAAAA
3 = #FFFFFF
Emulators will use whatever they deem looking best but this is what I assume are the "true" colours. That said, the GBP itself doesn't use RGB, so technically speaking these are just what are mathematically most correct.
We had a thread about this before, it was about the GB instead of GBP but the only visual difference is that the GB had a green tint. I'll explain it again here though.
The console uses 2 bits for its colours, which is 4 colours total:
00 = 0
01 = 1
10 = 2
11 = 3
0 is black, 3 is white, and the others are the intermediate greys. Therefore in terms of RGB codes they would probably be:
0 = #000000
1 = #555555
2 = #AAAAA
3 = #FFFFFF
Emulators will use whatever they deem looking best but this is what I assume are the "true" colours. That said, the GBP itself doesn't use RGB, so technically speaking these are just what are mathematically most correct.