Dark orange.
Black.
BLACK
The fruit orange is called an orange due to it's orange color. It wouldn't make much sense to call an orange fruit black. In some countries oranges are green.
Blue and orange are opposites on the color wheel. The mixing of opposite colors usually produces a brown or black.
orange and black
Mixing black and orange will result in a darker shade of orange, leaning towards a burnt orange or rust color. The intensity of the black will determine how dark the final color appears.
It's orange to make it easier to find in wreckage.
They are actually luminus orange to make them more visable
His stripes are orange and black.
Orange with black O.C or black with Orange O.C
Princeton.Black and any color generally just makes a darker shade of that color, so ... dark orange to brown to nearly black, depending on the relative proportions.
Brown - chestnut perhaps, if your orange is blood orange (a red orange)