Something that completes or goes well with something

One of a set of two or more different things that complete or complement each other

संपूर्ण

English Usage: The colors blue and yellow are complementary.

Hindi Usage: नीला और पीला रंग एक-दूस को पूरा करते हैं।

To complete or enhance by providing something additional

To add to something in a way that enhances or improves it

वृद्धि करना

English Usage: The artist's use of color complements the mood of the piece.

Hindi Usage: कलाकार का रंग का उपयोग इस टुकड़े के मूड को बढ़ाता है।