“Why do two colors, put one next to the other, sing? Can one really explain this?”
Not the most common spring or summer color but it's up to you how you make it work. Combine it with light, bright and fresh colors and it becomes a summer outfit. With white, pink or coral to freshen your look. It is a tight you can wear all year long. If you pair it with black or deep red you're also ready for when the days are shortened.
Petrol is squat proof. You can stretch, run and squat without everything being visible.
You can keep the tight nice by washing inside out at 30 degrees. Please do because you don't want to lose that soft feel.