Closest hex to #66e3d0 is #6dc

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#6dc

66e3d0

66e3d0

contains 6d

06d 16d 26d 36d 46d 56d 66d 6d0 6d1 6d2 6d3 6d4 6d5 6d6 6d7 6d8 6d9 6da 6db 6dc 6dd 6de 6df 76d 86d 96d a6d b6d c6d d6d e6d f6d

contains dc

0dc 1dc 2dc 3dc 4dc 5dc 6dc 7dc 8dc 9dc adc bdc cdc dc0 dc1 dc2 dc3 dc4 dc5 dc6 dc7 dc8 dc9 dca dcb dcc dcd dce dcf ddc edc fdc

contains 6c

06c 16c 26c 36c 46c 56c 66c 6c0 6c1 6c2 6c3 6c4 6c5 6c6 6c7 6c8 6c9 6ca 6cb 6cc 6cd 6ce 6cf 76c 86c 96c a6c b6c c6c d6c e6c f6c