In Buddhism, '色' is said to refer to the material form.

Her dress was red, and it was very beautiful.

His painting uses seven colors.

Her coat was mustard-colored and very noticeable.

His favorite color is blue.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.

The exam ended and the results were good, so I thought 'all's well that ends well'.