The Great Debate

Okay, now this one DOES actually depend on the setting. I'm not meming, that's how it actually works.

Either bait, or this guy actually thinks low fantasy means the saem thing as human-only historical fiction.

Green, ranging from the dark green of the outside of an avocado to the yellow-green of the inside of an avocado (in much the same way humans range from dark brown to pale pink).

How blue we talking?

>all his orcs are the same colour
>the beauty of species diversity hasn't graced his setting
>he's not given himself easy identifiers in conversations
>he's probably just gonna use orcs as fodder
>he's crippling his own creative potential

Blue is an elf color, well also a color for your underwater races, but for land based races most of the time it's an elf color.

I'm not running "my own" setting just my own campaign which is a fair sight more then half of the people on Veeky Forums seem to have so I can't really tell you anything but the canon standpoint for orcs in the setting.

Anything from the rightmost column, or the upper-middle the of the column next to it.

Kinda-sorta.
Warhammer Fantasy is where green orcs originated from, but as model wargames were (and still are) niche it was technically WarCraft that popularized it as it's computer games reached a far greater audience.

There's also that rumor that WarCraft was originally going to be a Warhammer Fantasy game, which is likely at least partially true as orcs as huge green muscled Neanderthal-men originates almost completely from there whereas orcs in prior editions of D&D looked like this instead.

That's a troll, mate