achromatic

Instead, brown, gray, beige and white are dominant, an achromatic palette whose gloomy drabness is only relieved by the surprisingly wide variety of neutrals the artist employs.

“He makes the decision to more or less abandon color and make these achromatic paintings with incredible permutations within them,” she said.

Unlike some of the artist’s best-known works, which wow with saturations and transformations of color, “Avaar” is achromatic — using only white light.

The moneyed, achromatic 2010s could give way to a more fascinating and unpredictable cultural landscape, with once marginalized communities asserting themselves.

Beyond creating this “achromatic” metalens, scientists have developed metalenses that correct other aberrations, such as coma and astigmatism, which cause image distortions and blurring.