function setup(){
createCanvas(600,600)
background(255)
colorMode(HSB,360,100,100)
}
function draw(){
let x=50
let y=50
stroke(0)
fill(random(255),50,100,1)
for(let i=1;i<=6;i++){
ellipse(x,y,100,100)
ellipse(x,y+100,100,100)
ellipse(x,y+200,100,100)
ellipse(x,y+300,100,100)
ellipse(x,y+400,100,100)
ellipse(x,y+500,100,100)
x+=100
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.1.9/p5.min.js"></script>