Helo everyone I got stuck. In. Programming ws2811 pixel led, actually i just need warmwhite color in pixel led and i am not getting the exact colour code to use i had tested all the colour samples but no one exactly working out, i think its actually not possible to get that.
Having all 3 colors (RGB) at equal brightness would probably be something like neutral white. So if you increase the red brightness or reduce the green and blue brightness that should shift it warmer. Maybe a little more green than blue. If you increase the relative blue brightness that will make it a cooler white.
They actually do sell monochrome warm white addressable LED strips if that's the only color you want. Using RGB to get white is not really ideal since you will always notice some of the individual colors if you look at the LEDs. Better diffusion helps a lot with that.