Closest hex to #78b1f7 is #7af

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#7af

78b1f7

78b1f7

contains 7a

07a 17a 27a 37a 47a 57a 67a 77a 7a0 7a1 7a2 7a3 7a4 7a5 7a6 7a7 7a8 7a9 7aa 7ab 7ac 7ad 7ae 7af 87a 97a a7a b7a c7a d7a e7a f7a

contains af

0af 1af 2af 3af 4af 5af 6af 7af 8af 9af aaf af0 af1 af2 af3 af4 af5 af6 af7 af8 af9 afa afb afc afd afe aff baf caf daf eaf faf

contains 7f

07f 17f 27f 37f 47f 57f 67f 77f 7f0 7f1 7f2 7f3 7f4 7f5 7f6 7f7 7f8 7f9 7fa 7fb 7fc 7fd 7fe 7ff 87f 97f a7f b7f c7f d7f e7f f7f