ncolors= 20
# r g b
0.050000 0.050000 1.000000
0.150000 0.150000 1.000000
0.250000 0.250000 1.000000
0.350000 0.350000 1.000000
0.450000 0.450000 1.000000
0.550000 0.550000 1.000000
0.650000 0.650000 1.000000
0.750000 0.750000 1.000000
0.850000 0.850000 1.000000
0.950000 0.950000 1.000000
1.000000 0.950000 0.950000
1.000000 0.850000 0.850000
1.000000 0.750000 0.750000
1.000000 0.650000 0.650000
1.000000 0.550000 0.550000
1.000000 0.450000 0.450000
1.000000 0.350000 0.350000
1.000000 0.250000 0.250000
1.000000 0.150000 0.150000
1.000000 0.050000 0.050000