A strong, neutral, high-contrast frame colour.

Matte black eyewear rarely photographs as a flat, even black — the visible grey highlights here are simply the frame's own matte surface catching studio light unevenly.
This matte frame reflects studio light unevenly, so it photographs as a range of greys rather than a flat black — a genuine optical effect of a matte black material rather than a colour-accuracy problem."Black Framed Glasses" by Gaurav Dhwaj Khadka, CC BY-SA 4.0, via Wikimedia CommonsFrames sit directly on the face and carry real visual weight — black is one of the most prominent frame choices.
One of the most versatile frame colours across outfits and occasions.
Provides strong contrast against most eye colours rather than echoing any particular one.
Browse eye coloursReads clearly against most hair colours, including black hair, where it blends more than contrasts.
Browse hair coloursBoth warm and cool metals commonly work, since black itself is neutral. Compare metals.