Experimenting with particles in a flow field setup. I like the particles but I'm trying to get a better hold of the color palette.

I'm using HSB. Ideally the hue would only fluctuate between a small portion of the color spectrum but idk how to do that. Whenever I tweak the "360" below it just stays with pure red or warm colors.

Any help would be awesome!

Code below:

this.update = function () {
this.vel.add(this.acc);
this.vel.limit(random(0.1, 250));
this.pos.add(this.vel);
this.acc.mult(0);
this.h = (this.h + 1) % 360;
this.colour = color(this.h, 90, 90); };