Closest hex to #e53d31 is #d43

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#d43

e53d31

e53d31

contains d4

0d4 1d4 2d4 3d4 4d4 5d4 6d4 7d4 8d4 9d4 ad4 bd4 cd4 d40 d41 d42 d43 d44 d45 d46 d47 d48 d49 d4a d4b d4c d4d d4e d4f dd4 ed4 fd4

contains 43

043 143 243 343 430 431 432 433 434 435 436 437 438 439 43a 43b 43c 43d 43e 43f 443 543 643 743 843 943 a43 b43 c43 d43 e43 f43

contains d3

0d3 1d3 2d3 3d3 4d3 5d3 6d3 7d3 8d3 9d3 ad3 bd3 cd3 d30 d31 d32 d33 d34 d35 d36 d37 d38 d39 d3a d3b d3c d3d d3e d3f dd3 ed3 fd3