Yes, Because it's OPTIONAL. And Burgundy is close to black with it being lighter.
In a word, no! If you choose not to wear formal attire to a "black tie optional event" the expectation is that you will wear a dark suit with a necktie if a guy or a cocktail dress if a woman.
Dark crimson (almost burgundy).
Burgundy is a form of the color red. In order to make it burgundy you would mix tiny amounts of dark blue in it. If you would like it to be even darker, after adding the dark blue and a little black.
Dark red. Maroon, carmine, sangria, burgundy? Take a pick.
Black would go great, or a dark brown.
There isn't a "Burgundy" horse as such, It would either be a bay or a chestnut. A bay being either bright or dark brown with with black legs. A chestnut being a reddish kind of colour. No burgundy horse!
Dark red. Any color mixed with black becomes a darker shade of the same color.
Yes, but only blue, dark green, red, burgundy.
Maroon and burgundy create dark brown.
To get from pink to Burgundy you need to add a little red and some blue.
Burgundy(dark red) or bronze(dark brown)
It is generally a bad idea. Some invitations will decree "Black Tie Optional" or "Black Tie Preferred." At the former, tuxedos will probably be worn by the majority of men, but a dark suit is acceptable. At the latter, a dark suit is narrowly acceptable if time or finances truly prevent a man from even renting a tuxedo. However, if an invitation simply says "Black Tie," it would be impolite not to wear a tuxedo.