Menthol Compared to Lagoon

Here is the Menthol Swiftly headband compared to Lagoon Swiftly (on the right) and an Angel Swiftly (on the left). I dug up another photo comparing the aqua-blues:

From left to right: Aruba, Angel Blue, River Rock, Lagoon, Oasis, Ocean, Savage, and Teal Zeal along the top. Based on this photo, I'd say Menthol is closest to River Rock. However, it could be pretty close to Toothpaste, but I recall that being more of a pastel:

Toothpaste Swiftly