Closest hex to #21aedb is #2ad

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#
#2ad

21aedb

21aedb

contains 2a

02a 12a 22a 2a0 2a1 2a2 2a3 2a4 2a5 2a6 2a7 2a8 2a9 2aa 2ab 2ac 2ad 2ae 2af 32a 42a 52a 62a 72a 82a 92a a2a b2a c2a d2a e2a f2a

contains ad

0ad 1ad 2ad 3ad 4ad 5ad 6ad 7ad 8ad 9ad aad ad0 ad1 ad2 ad3 ad4 ad5 ad6 ad7 ad8 ad9 ada adb adc add ade adf bad cad dad ead fad

contains 2d

02d 12d 22d 2d0 2d1 2d2 2d3 2d4 2d5 2d6 2d7 2d8 2d9 2da 2db 2dc 2dd 2de 2df 32d 42d 52d 62d 72d 82d 92d a2d b2d c2d d2d e2d f2d