Provided herein are compounds of Formula (I): and pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof, wherein R1, R2a, R2b, R3 and Ring B are as defined herein, and Ring A is a group of Formula (A-i), (A-ii), or (A-iii): wherein R, R, R, R, and R are as defined herein. Compounds of the present invention are useful for inhibiting CARMl activity. Methods of using the compounds for treating CARMl -mediated disorders are also described.