Is there any way to customize the color picker in HTML 5?

Problem

I’m building a website with HTML5 and CSS3, and I want to create a unique color picker with HTML5

Is there any way to customize the color picker?

Problem courtesy of: BorisD

Solution

In Opera, the only browser to have implemented the color element, you can customize the set of colours offered with a datalist:

<datalist id="greyscale">
    <option value="#000000">
    <option value="#333333">
    <option value="#666666">
    <option value="#999999">
    <option value="#cccccc">
</datalist>
<fieldset class="col">
    <legend>Color element 2</legend>
    <label for="excolor2">Color: </label>
    <input type="color" id="excolor2" name="excolor2" list="greyscale">
</fieldset>

Here’s some examples.

Solution courtesy of: robertc

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