Monochromatic gradient nail art refers to a nail design that uses a single color, blending it from light to dark or vice versa. This technique creates a seamless and elegant look, often enhancing the natural beauty of the nails. It involves applying a base color, followed by a thin, even layer of the lighter or darker shade to create the gradient effect. This style is popular for its simplicity and versatility, as it can be adapted to various occasions and personal tastes.