Closest hex to #1e31b7 is #23b

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#23b

1e31b7

1e31b7

contains 23

023 123 223 230 231 232 233 234 235 236 237 238 239 23a 23b 23c 23d 23e 23f 323 423 523 623 723 823 923 a23 b23 c23 d23 e23 f23

contains 3b

03b 13b 23b 33b 3b0 3b1 3b2 3b3 3b4 3b5 3b6 3b7 3b8 3b9 3ba 3bb 3bc 3bd 3be 3bf 43b 53b 63b 73b 83b 93b a3b b3b c3b d3b e3b f3b

contains 2b

02b 12b 22b 2b0 2b1 2b2 2b3 2b4 2b5 2b6 2b7 2b8 2b9 2ba 2bb 2bc 2bd 2be 2bf 32b 42b 52b 62b 72b 82b 92b a2b b2b c2b d2b e2b f2b