Black and gold wall art is almost never paint. The gold is artificial light after dark: lit windows, street lamps and reflections on water against an unlit sky. That is why so much of this range is night city work, and why it behaves like a light source on the wall.
The pairing is also the most reliable one in decorating, because gold is warm and light while black is cool and dark, so they contrast in both temperature and value at once.

Night cities supply most of it
Roughly a third of this range is shot at night, and gold appears in about the same share. Those two facts are the same fact: sodium and tungsten light read as gold, and everything they are not touching reads as black.
Skylines, harbors and bridges recur for that reason. A bridge at night is the cleanest example available, since the structure gives a hard black silhouette and the lamps give a repeating line of gold. Black and Gold Wall Art holds the range, and Bridge Wall Art narrows it to the crossings.

Some black and gold artwork is a metallic abstract: gold as a material, leaf or foil or a rendered metal surface. Some is photographic: gold as light in the air.
They suit different rooms. Metallic reads as luxury and formality, and it wants a room that already has some polish, marble, glass or brass fittings. Photographic gold reads as atmosphere and goes into an ordinary room without asking anything of it. Both sit in this range, so check which one an image actually is rather than buying on the swatch. Gold Wall Art holds the wider warm set.
Why the pairing is so forgiving
Most color pairs fail because the two sit too close in value, so neither leads and the result looks undecided. Black and gold cannot fail that way. The value gap is the largest available, and the temperature gap runs the same direction.
The practical result is that you can hang a black and gold piece in a room with almost any existing palette and it will not clash, because it is not really competing on hue. It is competing on light and dark, which every room already has. The navy wall art guide covers the near neighbor, where the sky keeps some blue.

Blue hour or full night
There is a real split inside this category and it changes the mood entirely. In the half hour after sunset the sky still holds deep blue, so the piece reads as blue and gold and feels open. Later, once the sky goes fully black, the same view reads as black and gold and feels enclosed and more formal.
Choose by room. A living room usually wants the earlier, more open version. A dining room, a study or a bar wants the later one, because the enclosure suits a room used at night under lamps. Both look almost identical in a thumbnail, so it is worth looking at the sky rather than the lights.

Where it works and where it does not
It works in rooms used after dark, which is where the artwork and the room finally agree. A dining room, a study, a bar area or a bedroom all suit it, because the piece looks its best under the same lamplight the room is using.
It struggles in a bright south facing room used mostly in daylight, where a mostly dark canvas reads as a flat panel rather than as a scene. It also struggles on a dark wall, for the ordinary reason: the black in the artwork merges with the paint and only the gold survives, which leaves a scatter of dots. Keep it on a pale wall. City Wall Art holds the daylight versions of the same places.

Sizing and multi panel
Use the usual proportion, about two thirds the width of the furniture below, so roughly 48 inches above a 72 inch sofa, with the center 57 to 60 inches from the floor. Dark work scales up comfortably because it recedes, so take the upper end of the range rather than the lower.
Multi panel suits this subject unusually well. On a night skyline the seams fall between lit buildings, into unlit sky, so they interrupt nothing. Horizontal work runs 1 Piece, 3 Horizontal, 4 Pop, 5 Star and 5 Pop from 24 x 16 to 82 x 42 inches, and panoramic covers 36 x 12 to 73 x 24, which matches the proportion of a skyline better than anything else. The multi panel comparison covers the choice.
Quick answers
Common Questions
Where does the gold in black and gold wall art come from?
Usually artificial light rather than pigment. Sodium and tungsten lamps read as gold on camera, so lit windows, street lamps and their reflections supply the warm color while the unlit sky supplies the black. The other source is metallic abstract work, where gold is a rendered material.
What wall color suits black and gold artwork?
A pale one. White, warm white, greige and sand all let the black read as an object. On a dark wall the black in the artwork merges with the paint and only the gold survives, which leaves the piece looking like a scatter of dots rather than a scene.
What is the difference between black and gold and navy and gold art?
The time of day. Navy and gold is blue hour, the half hour after sunset when the sky still holds deep blue, and it feels open. Black and gold is later, once the sky has gone fully dark, and it feels enclosed and more formal. They look nearly identical in a thumbnail.
Which rooms suit black and gold wall art?
Rooms used after dark: a dining room, a study, a bar area or a bedroom. The artwork looks its best under the same lamplight the room is already using. It suits a bright daylight room least, where a mostly dark canvas reads as a flat panel rather than a scene.
Does black and gold work as a multi panel set?
Unusually well. On a night skyline the seams fall between lit buildings into unlit sky, so they interrupt nothing. Panoramic at 36 x 12 to 73 x 24 inches matches a skyline's proportion better than any other format, and dark work scales up comfortably because it recedes.