Change color for primitive

Hey!

I'm making an application where I use Vuforia to place out spots on a plane onTouch. (It's the beginning for an application to steer an Sphero robot). I want to make the spots I place out green but somehow my code doesn't work and they are black (I've added a light source in the scene). It's just annoying because it's probably just some small error but I can't find it. Here's my onTouch function:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class TouchInput : MonoBehaviour {
 
     public Text vecText;
 
     // Update is called once per frame
     void Update ()
     {
         // Attach this script to a trackable object
         // Create a plane that matches the target plane
         Plane targetPlane = new Plane(transform.up, transform.position);
         GameObject origo = GameObject.CreatePrimitive (PrimitiveType.Cylinder);
         origo.transform.parent = transform;
         origo.transform.localScale = new Vector3(0.1f, 0, 0.1f);
         origo.transform.position = new Vector3(0, 2.72f, 0);
 
         foreach (Touch touch in Input.touches)
         {
             if (touch.phase == TouchPhase.Began)
             {
                 Ray ray = Camera.main.ScreenPointToRay(touch.position);
 
                 float dist = 0.0f;
                 targetPlane.Raycast(ray, out dist);
                 Vector3 planePoint = ray.GetPoint(dist);
                 GameObject pos = GameObject.CreatePrimitive(PrimitiveType.Cylinder);
                             // Trying to make the spots green here!
                 pos.GetComponent<Renderer>().material.color = new Color(0, 1.0f, 0, 1.0f);
                 pos.transform.parent = transform;
                 pos.transform.localScale = new Vector3(0.1f, 0, 0.1f);
                 pos.transform.position = planePoint;
                 float vX = planePoint.x;
                 float vY = planePoint.y;
                 float vZ = planePoint.z;
                 vecText.text = "vX: " + vX.ToString() + "\n" + 
                                "vY: " + vY.ToString() + "\n" + 
                                "vZ: " + vZ.ToString ();
             }
         }
     }
 }
 

Can someone please point out my error?