i am using open CV and i am facing this error

import cv2
import numpy as np
frameWidth = 640
frameHeight = 480

cap = cv2.VideoCapture(0)
cap.set(3,frameWidth)
cap.set(4,frameHeight)
cap.set(10,150)

myColors=[[5,107,0,19,255,255],
         [133,56,0,159,156.255],
         [57,76,0,100,255,255]]

def findColors(img,myColors):
    imgHSV = cv2.cvtColor(img,cv2.COLOR_BGR2HSV)
    for color in myColors:
        lower =  np.array(color[0:3])
        upper =  np.array(color[3:6])
        mask  = cv2.inRange(imgHSV, lower, upper)
        cv2.imshow(str(color[0]),mask)

while True:
    success, img = cap.read()
    findColors(img,myColors)
    cv2.imshow("result", img)
    if cv2.waitKey(1) & 0xFF == ord ('q'):
        break

I have been trying to create a colour tracker which would go about tracing the colour from the camera and i have been stuck here awhile any help would be appreciated

error: (-209:Sizes of input arguments do not match) The upper boundary is neither an array of the same size and same type as src, nor a scalar in function 'cv::inRange'

Can someone help me here