/div>

    <div class="ref-description">
    <p><code>shades_of</code> returns a vector of <code>n</code> colors that are 
shades of a color gradient ranging 
from an initial color <code>col_1</code> to a final color <code>col_n</code>.</p>
    </div>

    <div id="ref-usage">
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">shades_of</span><span class="op">(</span>n <span class="op">=</span> <span class="fl">5</span>, col_1 <span class="op">=</span> <span class="st">"black