Closest hex to #2f51f8 is #35f

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#35f

2f51f8

2f51f8

contains 35

035 135 235 335 350 351 352 353 354 355 356 357 358 359 35a 35b 35c 35d 35e 35f 435 535 635 735 835 935 a35 b35 c35 d35 e35 f35

contains 5f

05f 15f 25f 35f 45f 55f 5f0 5f1 5f2 5f3 5f4 5f5 5f6 5f7 5f8 5f9 5fa 5fb 5fc 5fd 5fe 5ff 65f 75f 85f 95f a5f b5f c5f d5f e5f f5f

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