Khaki and Olive-brown

Khaki noun - A sturdy twilled cloth of a yellowish brown color used especially for military uniforms.

Olive-brown and khaki are semantically related in light brown topic. In some cases you can use "Olive-brown" instead a noun "Khaki".

Olive-brown adjective - Of a brown color with a greenish tinge.

Khaki and olive-brown are semantically related in light brown topic. You can use "Khaki" instead a noun phrase "Olive-brown".