BOX DRAWINGS LIGHT DIAGONAL UPPER RIGHT TO LOWER LEFT U+2571

BlockBox Drawing
CategoryOther Symbol
UTF-80xE2 0x95 0xB1
UTF-160xFF 0xFE 0x71 0x25
UTF-320xFF 0xFE 0x0 0x0 0x71 0x25 0x0 0x0
HTML╱
Pythonu"\u2571"