What means
A cell-sized patch for text-mode pictures.
An octant is one of eight small cells in a character space; its digits identify the filled positions. A 1983 guide for the Kaypro 10 personal computer describes this 2×4 graphics grid. Unicode’s legacy mapping matches this exact tile to Kaypro’s reverse-video character code C5; reverse video swaps light and dark.
The same grid still makes terminal art: a Go image renderer documented in 2026 turns picture pixels into octant characters.
Don't confuse it with
4Questions people ask
1Why does it show as a box?
It can be a font-coverage issue: as of 2026, your system font may not include this newer character, so the app may show a missing-glyph box. Even supporting fonts can draw its cell edges differently; Unicode does not prescribe one reference shape.
How to type
𜵦\1CD66Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
