te
reading the legend the reversed order Luminance / Chroma / Hue is used so that
the legend labels are closer to the axis they pertain to.
</p>
<p>For comparing two palettes, <code>specplot(x, y)</code> can be used which adds
lines (dashed, by default) corresponding to the <code>y</code> palette HCL/RGB
coordinates in the display.
</p>



<h3>Value</h3>

<p><code>specplot</code> invisibly returns a list with components
</p>
<table summary="R valueblock">
<tr valign="top"><td><code>HCL</code></td>
<td>
<p>a