That color and smell have a sensory connection is long-established, but there’s debate about whether associating the smell of strawberries with red or smoke with black is something structured in our brains, based in language, or resulting from experience. A study published this week in the peer-reviewed, open-access PLoS One called “Cross-Cultural Color-Odor Associations” suggests it may be cultural.
https://hyperallergic.com/138223/what-does-color-smell-like