Color changes gradually from first to last

[SebAugh2004]

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[SebAugh2004]

I have 4 ws2812b light strips at 30led a meter 5 meters long and I am powering them with a 5 v 30 a power supply they are controlled by esp8266. When I chose the color white the first strip is white and the last strip is red

[ChuckMash]

If they are all connected into a single 20 meter run, sounds like it could be voltage drop,
Are you injecting power between each strip, or only at the beginning?

[SebAugh2004]

In the middle

[ChuckMash]

Something like this?

It might help if you shared a diagram of the wiring, or a picture of the problem.
It does sound to me like it could still be voltage drop

[blazoncek]

Please see Wiki or WLED Docs for wiring and power injection instructions.