Unity standard shader emits yellow instead of orange

So, I have a game where all the colours blend. - This part works.

My Albedo colour displays absolutely 100% correctly. My Emission colour, when set above 1f (And when the colour is orange or olive) it just emits yellow. Pretty much every non-primary additive colour emits incorrectly, or rather, not as I would expect it to; whether they display too white (I do not mean bright) or just display in a manner that I don't want (As explained earlier).

Any help would be greatly appreciated as I've spent hours searching the web by Google, or by Bing (God forbid) and I've come up empty handed.

Thank you!