Swedish artist Bertil Öhlund (1923-2003) studied under Otte Sköld in 1949 and attended the Royal Academy of Arts in Stockholm from 1950-55. I find the color combinations in his geometric abstracts very unique.
Dioptriska Brytningar, 1958, oil on canvas, 65 x 81 cm. Stockholms Auktionsverk
Untitled, 1957, oil on canvas, 64.5 x 80 cm. Stockholms Auktionsverk
Dioptriskt Torn, 1956-57, oil on canvas, 61 x 50 cm. Bukowskis
Untitled, 1957, oil on canvas, 46 x 75 cm. Bukowskis
Untitled composition, 1958, oil on panel, 50 x 60 cm. Bukowskis
Bertil Öhlund (Stockholm, Sweden,1923 - Brussels, Belgium, 2003). Image via Galerie Bel'Art
Galerie Bel'Art has a long list of information on Bertil, including shows, museums and awards.