Closest hex to #30d2dd is #3cd

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#
#3cd

30d2dd

30d2dd

contains 3c

03c 13c 23c 33c 3c0 3c1 3c2 3c3 3c4 3c5 3c6 3c7 3c8 3c9 3ca 3cb 3cc 3cd 3ce 3cf 43c 53c 63c 73c 83c 93c a3c b3c c3c d3c e3c f3c

contains cd

0cd 1cd 2cd 3cd 4cd 5cd 6cd 7cd 8cd 9cd acd bcd ccd cd0 cd1 cd2 cd3 cd4 cd5 cd6 cd7 cd8 cd9 cda cdb cdc cdd cde cdf dcd ecd fcd

contains 3d

03d 13d 23d 33d 3d0 3d1 3d2 3d3 3d4 3d5 3d6 3d7 3d8 3d9 3da 3db 3dc 3dd 3de 3df 43d 53d 63d 73d 83d 93d a3d b3d c3d d3d e3d f3d