I have been gathering info on this helmet also and I will be turning my MH Jango helmet into this one...
I will list some color observations I have noticed, see if you agree...
The main dome and lower cheeks do look bluish green.
1) right ear... weatherd silver on RF ear plate like ROTJ, middle ear new looking silver, lower ear dark green.
2) left ear... light grey slighly weatherd.
3) key hole area... Yellow
4) 18-19 orange (same color as ROTJ) kill marks on helmet.
5) Rabbit ears (eyes)... same color as cheecks
6) green weathering in red visor area nd charcoal cheeck area.
7) visor area... same red as ESB, just not weatherd so dark.
These are things I have observed while studying the SW Chronicals pics, I have sent this same info to Tylerdurdan and RougeStudios to see if the concour as well and I'm waiting to here back.