Morris Louis
(1912 - 1962)
 

Morris Louis Bernstein known professionally as Morris Louis, was an American painter. During the 1950s he became one of the earliest exponents of Color Field painting. While living in Washington, D.C., Louis, along with Kenneth Noland and other Washington painters, formed an art movement that is known today as the Washington Color School.

https://en.wikipedia.org/wiki/Morris_Louis

Sub-Marine
1948
Oil on Canvas
56.52 × 90.17 cm
National Gallery of Art, Washington
https://www.nga.gov/collection/art-object-page.212571.html