Closest hex to #00ff77 is #0f7

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#
#0f7

00ff77

00ff77

contains 0f

00f 0f0 0f1 0f2 0f3 0f4 0f5 0f6 0f7 0f8 0f9 0fa 0fb 0fc 0fd 0fe 0ff 10f 20f 30f 40f 50f 60f 70f 80f 90f a0f b0f c0f d0f e0f f0f

contains f7

0f7 1f7 2f7 3f7 4f7 5f7 6f7 7f7 8f7 9f7 af7 bf7 cf7 df7 ef7 f70 f71 f72 f73 f74 f75 f76 f77 f78 f79 f7a f7b f7c f7d f7e f7f ff7

contains 07

007 070 071 072 073 074 075 076 077 078 079 07a 07b 07c 07d 07e 07f 107 207 307 407 507 607 707 807 907 a07 b07 c07 d07 e07 f07