Drain the crab and gently pick out any bits of shell.
Whisk mayonnaise, lemon juice, Dijon, seafood seasoning, salt, and pepper in a medium bowl.
Stir in celery, red onion, dill, capers, and hot sauce until evenly combined.
Fold in the crab gently so the lumps stay intact.
Cover and chill 15 minutes to meld flavors. Taste and adjust seasoning before serving.