Here’s Nimbus Gray 2131-50 by Benjamin Moore in context of its Hue Family neighborhood, 7 B (Blue), on The Color Strategist Color Wheel. The pink arrows point to where Paint Blob Nimbus Gray 2131-50 fits in among the other colors according to its Value 6.90 rounded to 7.00 and Chroma of 1.45 rounded to 1.50.