minimumRgbTolerance
Specify the Minimum RGB color sample range tolerance for your output. MediaConvert corrects any YUV values that, when converted to RGB, would be outside the lower tolerance that you specify. Enter an integer from -5 to 10 as an offset percentage to the minimum possible value. Leave blank to use the default value 0. When you specify a value for Minimum RGB tolerance, you must set Sample range conversion to Limited range clip.