Sunglasses or tinted lenses in brown, green, grey or other colours.
Lens tint covers a large part of the face, more than a frame colour alone.
Brown and grey tints tend to be the most versatile across different outfit colours.
The tint sits in front of the eyes rather than beside them, so this is more about the overall look than an echo effect.
Browse eye coloursBrown and green tints often coordinate with warm hair tones; grey tints read more neutral.
Browse hair coloursFrame material (metal vs plastic) usually matters more here than the lens tint itself. Compare metals.