Audio Visualization - color issue

Hi guys, I'm working on a project that visualizes input audio and I'm having difficulties making the color change according to the input sound frequency. Right now, tI'm just multiplying the band and freq by different numbers to mimic a lame attempt at the effect I'm going for. Ideally, the color would turn yellow when the input sounds are high pitch, and it would turn orange when the input sounds are medium pitch, and then it would turn purple when the input sounds are low pitch.

Here's what I have so far:

import ddf.minim.analysis.*;
import ddf.minim.*;

//global variables
Minim minim;          //minim object
AudioInput input;     //object for realtime audio
FFT fft;

void setup()
{
  size(displayWidth,displayHeight, P3D);         //scene is in 3D space
  minim = new Minim(this);                       //instantiate minim object
  input = minim.getLineIn(Minim.STEREO, 2048, 192000.0);
  fft = new FFT( input.bufferSize(), input.sampleRate());
  angle = new float[fft.specSize()];
  frameRate(240);

}

void draw()
{
  fft.forward(input.mix);       //use sound from microphone
  arcs();                       //visuals
}

float[] angle;
float[] y, x;

int rings = 7;         //variable for number of sets of rings
int ringDensity = 4;   //variable for number of rings within ring sets
int number = 24;       //variable for number of arcs that make up ring

void arcs()
{
  translate(width/2, height/2);     //move to center of window
  noFill();

  for (int h=1; h<(ringDensity*2); h=h+2) {
    for (int i=h; i<(rings); i=i+10) {
        for (int k = 0; k < fft.specSize() ; k++) {

        angle[k] = angle[k] + fft.getFreq(k)/3000;

        rotateX(sin(angle[k]/20));    //control 3D x rotation
        rotateY(cos(angle[k]/10));    //control 3D y rotation
        rotateZ(tan(angle[k]/30));    //control 3D z rotation


        //color stuff
        int count = 0;
        int lowTot = 0;
        int midTot = 0;
        int highTot = 0;
        for (int l = 0; l < input.left.size()/10; l+=5)
        {

          lowTot+=  (abs(fft.getBand(k)));
          midTot+=  (abs(fft.getAvg(k)));
          highTot+= (abs(fft.getFreq(k)));
          count++;
          }

        float diameter = map(40 * i * angle[k], 0, count, 50, 90);    //movement doesn't grow
        arc(0, 0, diameter, diameter, radians(k*(360/number)), radians((k+1)*(360/number)));

        stroke( map( lowTot, 0, count * 10, 0, 255 ),map( midTot, 0, count * 10, 0, 255 ),map( highTot, 0, count * 10, 0, 255 ));
        strokeWeight(map(fft.getBand(h), 0, count , 1, 200));
        }
       }
      }
    }

void stop()
{
  //closes minim classes
  input.close();
  minim.stop();
  super.stop();
}