title: color gradient palette that works well in grayscale
body: <p>Haven't found a good search term to Google this, so I'm asking here.</p>
  
  <p>I'm making a UI that involves 6 gradations, so I'm trying to achieve a colorful 6 color gradient that will still be a gradient if I'm using a grayscale monitor. </p>
  
  <p>I have a multi monitor setup with color and grayscale and sometimes I drag the browser window between screens.</p>
  
  <p>Any good ways to do this, examples online, or search terms? </p>
  
  <p>Thanks! </p>