# COLOUR_FLAG_256

- **Language:** C
- **Kind:** constant
- **Source:** https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/tmux.h#L643
- **Page:** https://libtmux.org/en/tmux/3.2a/reference/c-define-tmux-h-colour_flag_256/

```c
#define COLOUR_FLAG_256 0x01000000
```

## Referenced by

- [`colour_find_rgb`](/en/tmux/3.2a/reference/c-function-colour_find_rgb/) (function)
- [`colour_fromstring`](/en/tmux/3.2a/reference/c-function-colour_fromstring/) (function)
- [`colour_tostring`](/en/tmux/3.2a/reference/c-function-colour_tostring/) (function)
- [`grid_clear_cell`](/en/tmux/3.2a/reference/c-function-grid-c-grid_clear_cell/) (function)
- [`grid_get_cell1`](/en/tmux/3.2a/reference/c-function-grid-c-grid_get_cell1/) (function)
- [`grid_store_cell`](/en/tmux/3.2a/reference/c-function-grid-c-grid_store_cell/) (function)
- [`grid_string_cells_bg`](/en/tmux/3.2a/reference/c-function-grid-c-grid_string_cells_bg/) (function)
- [`grid_string_cells_fg`](/en/tmux/3.2a/reference/c-function-grid-c-grid_string_cells_fg/) (function)
- [`input_csi_dispatch_sgr_256_do`](/en/tmux/3.2a/reference/c-function-input-c-input_csi_dispatch_sgr_256_do/) (function)
- [`tty_check_bg`](/en/tmux/3.2a/reference/c-function-tty-c-tty_check_bg/) (function)
- [`tty_check_fg`](/en/tmux/3.2a/reference/c-function-tty-c-tty_check_fg/) (function)
- [`tty_check_us`](/en/tmux/3.2a/reference/c-function-tty-c-tty_check_us/) (function)
- [`tty_colours_bg`](/en/tmux/3.2a/reference/c-function-tty-c-tty_colours_bg/) (function)
- [`tty_colours_fg`](/en/tmux/3.2a/reference/c-function-tty-c-tty_colours_fg/) (function)
- [`tty_get_palette`](/en/tmux/3.2a/reference/c-function-tty-c-tty_get_palette/) (function)
- [`tty_try_colour`](/en/tmux/3.2a/reference/c-function-tty-c-tty_try_colour/) (function)
- [`window_pane_get_palette`](/en/tmux/3.2a/reference/c-function-window_pane_get_palette/) (function)