tone in
From Longman Dictionary of Contemporary Englishtone in phrasal verb British Englishif one colour or pattern tones in with another, they are similar and look good together SYN complement with Choose candles that will tone in with your tablecloth and china. → tone→ See Verb tableExamples from the Corpustone with• The £300,000 bridge has been designed to tone in with the area's historic buildings.