Solid black backgrounds below — true #000000, free to download in any size, with hex codes and a full-screen view. On AMOLED screens a pure black wallpaper actually switches pixels off, which saves battery and looks sharp.
Pure black (#000000)
Soft black
Very dark grey — keeps the black look but avoids harsh contrast around white text.
Black gradient
Uses for a plain black background
AMOLED phone wallpapers, YouTube end screens, text-on-black quote posts, product photography of light-colored items, and OLED screen testing — the full-screen view makes uneven backlight and stuck pixels easy to spot. If you want your own photo on black instead of a blank image, use the editor and pick black with the custom color option.
Related
Black and white backgrounds · Blue backgrounds · Pure white backgrounds