夕阳的柔和色调给整个房间增添了一种温暖舒适的氛围。

The ___mellowness of the sunset's colors created a warm and cozy atmosphere in the room.

随着年龄增长，她性格中的温和与从容越发明显，让人乐于与她相处。

Her ___mellowness became more evident with age, making her pleasant to be around.