The command NeutralSpread generates a list of evenly spaced colors across one quarter of the HSV color wheel. The input color will be included in the middle of the list.

If color is a shade of gray, then the empty list is returned.

$\mathrm{with}\left(\mathrm{ColorTools}\right)\:$

$\mathrm{NeutralSpread}\left(\mathrm{Color}\left(''HSV''\,''Red''\right)\,3\right)$

$\left[⟨HSV\; :\; 0.938\; 1\; 1⟩\,⟨HSV\; :\; 0\; 1\; 1⟩\,⟨HSV\; :\; 0.0625\; 1\; 1⟩\right]$

$\mathrm{greenspread}≔\mathrm{NeutralSpread}\left(''Green''\,11\right)$

$\mathrm{greenspread}≔\left[⟨RGB\; :\; 0.314\; 0.502\; 0⟩\,⟨RGB\; :\; 0.251\; 0.502\; 0⟩\,⟨RGB\; :\; 0.188\; 0.502\; 0⟩\,⟨RGB\; :\; 0.125\; 0.502\; 0⟩\,⟨RGB\; :\; 0.0627\; 0.502\; 0⟩\,⟨RGB\; :\; 0\; 0.502\; 0⟩\,⟨RGB\; :\; 0\; 0.502\; 0.0627⟩\,⟨RGB\; :\; 0\; 0.502\; 0.125⟩\,⟨RGB\; :\; 0\; 0.502\; 0.188⟩\,⟨RGB\; :\; 0\; 0.502\; 0.251⟩\,⟨RGB\; :\; 0\; 0.502\; 0.314⟩\right]$

$\mathrm{HSVColorWheel}\left(\mathrm{greenspread}\right)$

The ColorTools[NeutralSpread] command was introduced in Maple 16.

For more information on Maple 16 changes, see Updates in Maple 16.