Columbia blue is a light blue shade named after the Ivy League university. However, there are several synonyms for this color, including baby blue, sky blue, powder blue, ice blue, and robin's egg blue. Each synonym has varying degrees of green and gray, which affect their overall hue and tint. Baby blue is a soft and pastel color, while sky blue is brighter and more vibrant. Powder blue is more muted and subdued, while ice blue has a sharper and cooler tone. Lastly, robin's egg blue has a more greenish tint that resembles the blue shade of a bird's egg. No matter the synonym used, this color creates a refreshing and calming atmosphere.