@lucas@simevidas sure. Some are pretty static. I still think utility classes are an improvement over inline styles.
As for colors, most systems I've seen use numbers to indicate the scale. So red-100 thru red-800 should always be some shade of red for obvious semantic reasons but you could change the shades of red with proper care.
I'm not arguing for tailwind. I've never used it. But I have used utility classes, though always in combination with normal semantic classes, where appropriate.