Closest hex to #18de80 is #1d8

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#1d8

18de80

18de80

contains 1d

01d 11d 1d0 1d1 1d2 1d3 1d4 1d5 1d6 1d7 1d8 1d9 1da 1db 1dc 1dd 1de 1df 21d 31d 41d 51d 61d 71d 81d 91d a1d b1d c1d d1d e1d f1d

contains d8

0d8 1d8 2d8 3d8 4d8 5d8 6d8 7d8 8d8 9d8 ad8 bd8 cd8 d80 d81 d82 d83 d84 d85 d86 d87 d88 d89 d8a d8b d8c d8d d8e d8f dd8 ed8 fd8

contains 18

018 118 180 181 182 183 184 185 186 187 188 189 18a 18b 18c 18d 18e 18f 218 318 418 518 618 718 818 918 a18 b18 c18 d18 e18 f18