Imago ♂ and ♀
The upper side animal is definitely a female. The other one is likely a male with the two black dots on the underside and the weak contrast to the base colors of the underside of the hindwing.
No contrasting line on the hindwing but the two small black dots is good for the species. Dusky Meadow Brown [Lille Græsrandøje] does not have the dot near the costa.