Closest hex to #3f51a6 is #45a

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#45a

3f51a6

3f51a6

contains 45

045 145 245 345 445 450 451 452 453 454 455 456 457 458 459 45a 45b 45c 45d 45e 45f 545 645 745 845 945 a45 b45 c45 d45 e45 f45

contains 5a

05a 15a 25a 35a 45a 55a 5a0 5a1 5a2 5a3 5a4 5a5 5a6 5a7 5a8 5a9 5aa 5ab 5ac 5ad 5ae 5af 65a 75a 85a 95a a5a b5a c5a d5a e5a f5a

contains 4a

04a 14a 24a 34a 44a 4a0 4a1 4a2 4a3 4a4 4a5 4a6 4a7 4a8 4a9 4aa 4ab 4ac 4ad 4ae 4af 54a 64a 74a 84a 94a a4a b4a c4a d4a e4a f4a