The first recorded use of aero as a colour name in English was in 1920.

Colour coordinates
Hex triplet #7CB9E8
sRGBB (r, g, b) (124, 185, 232)
CMYKH (c, m, y, k) (47, 20, 0, 9)
HSV (h, s, v) (206°, 47%, 91%)

Source From Wikipedia