Hi, everybody. I already wrote that it's quite hard to determine the color Indigo.
According to Wikipedia, this is a kind of purple, the average between dark blue and purple. The name originated from the Indigo plant growing in India, from which the corresponding dye was extracted, also called Indigo, widely used to color clothing, mainly denim. In English, the color is called - "indian blue". It seems to me that the spots on this Orchid are exactly the same color, Indigo. Thank you for reading and have a great weekend.
Beautiful orchids!