# color var (client)

Source: https://ref.dm-lang.org/client/var/color
Added in BYOND 509.

Casts a color multiplication or [matrix](https://ref.dm-lang.org/notes/color-matrix.md) effect over the entire main map. This behaves exactly the same as atom.color, and will be combined with atom.color (which comes first) where present. See [atom.color](https://ref.dm-lang.org/atom/var/color.md) for more information.

If a matrix is used, the alpha column and row will have no effect.

Icons that have the NO_CLIENT_COLOR value in appearance_flags will not be subject to client.color. This can be useful for HUD objects.

This value can be animated.

```dm
mob/proc/DayNight(is_day)
    if(client)
        client.color = is_day ? \
            null : \
            list(0.2,0.05,0.05, 0.1,0.3,0.2, 0.1,0.1,0.4)
```

### See also
- [color var (atom)](https://ref.dm-lang.org/atom/var/color.md)
- [appearance_flags var (atom)](https://ref.dm-lang.org/atom/var/appearance_flags.md)