Impending, oil on Paper, 40 x 59.5 inches (image copyright Amy Marx)
Colours used: Cerulean blue and a light green glazed over Prussian blue.
Prussian blue is that very intense dark blue in the distance.
Some sort of buff colour for the sand visible through the water at the bottom of the painting.
The sea generally gets darker in colour as it deepens away from the shore, changing from emerald greens (and even sometimes warm yellows where the sandy seafloor is visible) to dark blues. But its important to remember that the sea surface also reflects the sky colour, which could be grey, ultramarine blue or even pink.
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