When you write a sentence with more than one adjective modifying a noun, it’s sometimes tricky to determine if you need to separate those adjectives with commas. Here are a couple of sentences to consider:
1. Charlotte wants to meet an honest, reliable, considerate man.
Do all those adjectives refer to the noun “man” in the same way? (Yes.) Could you use “and” to connect them? Charlotte wants to meet an honest and reliable and considerate man. You wouldn’t write that, but it makes sense. And you can move those adjectives around with no change in meaning: Charlotte wants to meet a considerate, reliable, honest man.
2. Ella wore bright yellow, suede flat shoes.
What happens if you stick an “and” between those adjectives? Ella wore bright and yellow and suede and flat shoes. Weird, right? In this case, you can’t move the adjectives around without a change in meaning (or a very odd wardrobe choice): Ella wore suede, and bright and yellow and flat shoes. “Suede” is the adjective that most closely defines the flats. “Bright” modifies the shade of yellow.