Closest hex to #398cfe is #38f

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#
#38f

398cfe

398cfe

contains 38

038 138 238 338 380 381 382 383 384 385 386 387 388 389 38a 38b 38c 38d 38e 38f 438 538 638 738 838 938 a38 b38 c38 d38 e38 f38

contains 8f

08f 18f 28f 38f 48f 58f 68f 78f 88f 8f0 8f1 8f2 8f3 8f4 8f5 8f6 8f7 8f8 8f9 8fa 8fb 8fc 8fd 8fe 8ff 98f a8f b8f c8f d8f e8f f8f

contains 3f

03f 13f 23f 33f 3f0 3f1 3f2 3f3 3f4 3f5 3f6 3f7 3f8 3f9 3fa 3fb 3fc 3fd 3fe 3ff 43f 53f 63f 73f 83f 93f a3f b3f c3f d3f e3f f3f