Honeycomb structure, electrically heating support, and exhaust gas purification device

A honeycomb structure, comprising:

• a honeycomb structure portion comprising:
• an outer peripheral wall;
• a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the cells extending from one end face to other end face to form a flow path;
• and at least one slit cut radially inward from the outer peripheral wall, the at least one slit extending in an extending direction of the cells;
• and
• a pair of electrode layers provided on an outer surface of the outer peripheral wall so as to extend in a form of a band in a flow path direction of the cells across a central axis of the honeycomb structure portion,
• wherein the outer peripheral wall and the partition comprise SiC and Si,
• wherein the at least one slit is filled with a filling material, and
• wherein at least one of two regions sandwiched between the pair of electrode layers on the outer surface of the outer peripheral wall has an information recognition portion for displaying information, and the information recognition portion has an area of a color tone range of 0.36≤x≤0.38, 0.38≤y≤0.41, 14≤Y≤100 of 250 mm2 or more in a CIExyY color space as defined in JIS Z 8781-3.