[ 1 ]          color    * normal *    deuteranopia    protanopia     tritanopia 
                 =====   ============   ============   ============   ============
                  C1       #000000        #000000        #000000        #000000   
                  C2       #383838        #383838        #383838        #383838   
                  C3       #646464        #646464        #646464        #646464   
                  C4       #8a8a8a        #8a8a8a        #8a8a8a        #8a8a8a   
                  C5       #bcbcbc        #bcbcbc        #bcbcbc        #bcbcbc   
                  C6       #ffffff        #ffffff        #ffffff        #ffffff   

                            normal      deuteranopia    protanopia     tritanopia 
                         ============   ============   ============   ============
  pairs         lowest --   14.984200 --   14.984200 --   14.984200 --   14.984200
=========           |    ------------   ------------   ------------   ------------
C1 vs. C2 |  14.984200   #  14.984200   #  14.984200   #  14.984200   #  14.984200
C4 vs. C5 |  15.081309   *  15.081309   *  15.081309   *  15.081309   *  15.081309
C3 vs. C4 |  15.102877   *  15.102877   *  15.102877   *  15.102877   *  15.102877
C2 vs. C3 |  15.114230   *  15.114230   *  15.114230   *  15.114230   *  15.114230
C5 vs. C6 |  15.149649   *  15.149649   *  15.149649   *  15.149649   *  15.149649
C1 vs. C3 |  29.693292   *  29.693292   *  29.693292   *  29.693292   *  29.693292
C4 vs. C6 |  29.820151   *  29.820151   *  29.820151   *  29.820151   *  29.820151
C2 vs. C4 |  30.078576   *  30.078576   *  30.078576   *  30.078576   *  30.078576
C3 vs. C5 |  30.084305   *  30.084305   *  30.084305   *  30.084305   *  30.084305
C1 vs. C4 |  43.806345   *  43.806345   *  43.806345   *  43.806345   *  43.806345
C3 vs. C6 |  43.956710   *  43.956710   *  43.956710   *  43.956710   *  43.956710
C2 vs. C5 |  52.722832   *  52.722832   *  52.722832   *  52.722832   *  52.722832
C1 vs. C5 |  65.350437   *  65.350437   *  65.350437   *  65.350437   *  65.350437
C2 vs. C6 |  65.653696   *  65.653696   *  65.653696   *  65.653696   *  65.653696
C1 vs. C6 | 100.000001   * 100.000001   * 100.000001   * 100.000001   * 100.000001