Closest hex to #b21ec9 is #a2c

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#a2c

b21ec9

b21ec9

contains a2

0a2 1a2 2a2 3a2 4a2 5a2 6a2 7a2 8a2 9a2 a20 a21 a22 a23 a24 a25 a26 a27 a28 a29 a2a a2b a2c a2d a2e a2f aa2 ba2 ca2 da2 ea2 fa2

contains 2c

02c 12c 22c 2c0 2c1 2c2 2c3 2c4 2c5 2c6 2c7 2c8 2c9 2ca 2cb 2cc 2cd 2ce 2cf 32c 42c 52c 62c 72c 82c 92c a2c b2c c2c d2c e2c f2c

contains ac

0ac 1ac 2ac 3ac 4ac 5ac 6ac 7ac 8ac 9ac aac ac0 ac1 ac2 ac3 ac4 ac5 ac6 ac7 ac8 ac9 aca acb acc acd ace acf bac cac dac eac fac