# javasript random colors for div background
**URL:** https://forum.kirupa.com/t/javasript-random-colors-for-div-background/637437
**Category:** web dev
**Created:** [November 13, 2017, 2:17am UTC](https://forum.kirupa.com/t/javasript-random-colors-for-div-background/637437 "2017-11-13T02:17:23Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Ruth\_Harris\_Shumate](https://forum.kirupa.com/u/Ruth_Harris_Shumate)
#### Post date: [November 13, 2017, 2:17am UTC](https://forum.kirupa.com/t/javasript-random-colors-for-div-background/637437/1 "2017-11-13T02:17:23Z")
I am trying to create hex colors randomly that will change the background of a div. It should repeat until a code tells it to stop. I have the code to generate the color I think.
```auto
function getRandomColor() {
var letters = '0123456789ABCDEF';
var hash = '#';
for (var i = 0; i < 6; i++) {
hash += letters[Math.floor(Math.random() * 16)];
}
document.write(hash);
return hash;
}
```
I also need to display the hex code created, I know I need to probably write functions that call functions and some time event to slow down the color display. I haven’t really got the function down yet.
This is my html
```auto
Power is of two kinds. One is obtained by the fear of punishment and the other by acts
of love. Power based on love is a thousand times more effective and permanent then the one
derived from fear of punishment.
Mahatma Gandhi
Change Background Color Color Hex Value:
Stop Changing Background Color
```
Ialso have to write code see less and see more on the text but I haven’t started on that yet.
Thanks
---
### Author:  [@senocular](https://forum.kirupa.com/u/senocular)
#### Post date: [November 13, 2017, 5:21pm UTC](https://forum.kirupa.com/t/javasript-random-colors-for-div-background/637437/2 "2017-11-13T17:21:44Z")
Your random color function looks fine, except for the `document.write()`. You’ll want to get rid of that. In fact, you should avoid using `document.write` whenever possible. Depending on what you’re after, there are other, better ways to do what you may be trying with `document.write`.
For the color randomization it sounds like you want to use [setInterval](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setInterval). In fact that link has an example for alternating colors which is very similar to what you’re after, but it sounds like you’re version of `changeColor` would want to be in a button rather then the `onload` used there?
---
### Author:  [@Ruth\_Harris\_Shumate](https://forum.kirupa.com/u/Ruth_Harris_Shumate)
#### Post date: [November 13, 2017, 10:28pm UTC](https://forum.kirupa.com/t/javasript-random-colors-for-div-background/637437/3 "2017-11-13T22:28:02Z")
Thanks senocular! You are always so helpful!