Closest hex to #fa4b02 is #f40

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#f40

fa4b02

fa4b02

contains f4

0f4 1f4 2f4 3f4 4f4 5f4 6f4 7f4 8f4 9f4 af4 bf4 cf4 df4 ef4 f40 f41 f42 f43 f44 f45 f46 f47 f48 f49 f4a f4b f4c f4d f4e f4f ff4

contains 40

040 140 240 340 400 401 402 403 404 405 406 407 408 409 40a 40b 40c 40d 40e 40f 440 540 640 740 840 940 a40 b40 c40 d40 e40 f40

contains f0

0f0 1f0 2f0 3f0 4f0 5f0 6f0 7f0 8f0 9f0 af0 bf0 cf0 df0 ef0 f00 f01 f02 f03 f04 f05 f06 f07 f08 f09 f0a f0b f0c f0d f0e f0f ff0