[ 1 ]          color    * normal *    deuteranopia    protanopia     tritanopia 
                 =====   ============   ============   ============   ============
                  C1       #000000        #000000        #000000        #000000   
                  C2       #303030        #303030        #303030        #303030   
                  C3       #565656        #565656        #565656        #565656   
                  C4       #777777        #777777        #777777        #777777   
                  C5       #9a9a9a        #9a9a9a        #9a9a9a        #9a9a9a   
                  C6       #c7c7c7        #c7c7c7        #c7c7c7        #c7c7c7   
                  C7       #ffffff        #ffffff        #ffffff        #ffffff   

                            normal      deuteranopia    protanopia     tritanopia 
                         ============   ============   ============   ============
  pairs         lowest --   12.362788 --   12.362788 --   12.362788 --   12.362788
=========           |    ------------   ------------   ------------   ------------
C6 vs. C7 |  12.362788   #  12.362788   #  12.362788   #  12.362788   #  12.362788
C3 vs. C4 |  12.428925   *  12.428925   *  12.428925   *  12.428925   *  12.428925
C1 vs. C2 |  12.436951   *  12.436951   *  12.436951   *  12.436951   *  12.436951
C4 vs. C5 |  12.498541   *  12.498541   *  12.498541   *  12.498541   *  12.498541
C5 vs. C6 |  12.585852   *  12.585852   *  12.585852   *  12.585852   *  12.585852
C2 vs. C3 |  12.651607   *  12.651607   *  12.651607   *  12.651607   *  12.651607
C5 vs. C7 |  24.720884   *  24.720884   *  24.720884   *  24.720884   *  24.720884
C2 vs. C4 |  24.801830   *  24.801830   *  24.801830   *  24.801830   *  24.801830
C4 vs. C6 |  24.806194   *  24.806194   *  24.806194   *  24.806194   *  24.806194
C1 vs. C3 |  24.856881   *  24.856881   *  24.856881   *  24.856881   *  24.856881
C3 vs. C5 |  27.034476   *  27.034476   *  27.034476   *  27.034476   *  27.034476
C4 vs. C7 |  36.487129   *  36.487129   *  36.487129   *  36.487129   *  36.487129
C1 vs. C4 |  36.551420   *  36.551420   *  36.551420   *  36.551420   *  36.551420
C3 vs. C6 |  39.301945   *  39.301945   *  39.301945   *  39.301945   *  39.301945
C2 vs. C5 |  39.435535   *  39.435535   *  39.435535   *  39.435535   *  39.435535
C3 vs. C7 |  50.089593   *  50.089593   *  50.089593   *  50.089593   *  50.089593
C1 vs. C5 |  50.274161   *  50.274161   *  50.274161   *  50.274161   *  50.274161
C2 vs. C6 |  60.376692   *  60.376692   *  60.376692   *  60.376692   *  60.376692
C2 vs. C7 |  70.549828   *  70.549828   *  70.549828   *  70.549828   *  70.549828
C1 vs. C6 |  70.699127   *  70.699127   *  70.699127   *  70.699127   *  70.699127
C1 vs. C7 | 100.000001   * 100.000001   * 100.000001   * 100.000001   * 100.000001