Photoshop: HSL Color picker plugin?

Question

Is there a plugin that can let Photoshop use a HSL color picker, rather than HSV (which Adobe calls HSB)?

In other words, any/all of the following locations could have an HSL option:

Or perhaps a plugin with it's own color picker.

Reference

     RGB             HSL         HSV (aka HSB)
=============  ===============  ================
(1,   0, 0  )  (  0°, 1, 0.5 )  (  0°, 1,   1  )   
(0.5, 1, 0.5)  (120°, 1, 0.75)  (120°, 0.5, 1  )   
(0,   0, 0.5)  (240°, 1, 0.25)  (240°, 1,   0.5)   

Answer 1

There is a plugin called HSBHSL provided by Adobe Photoshop itself. Hope that solve your problem.

HSBHSL The "HSL&HSB" plug-in allows conversion between RGB and HSL (Hue, Saturation, and Lightness) and between RGB and HSB (Hue, Saturation, and Brightness) within Photoshop. This plug-in also allows you to change the Hue, Saturation, or Luminosity of an image as independent channels. Or, to change HSL/HSB using channel operations (calculations).

Download here: Adobe Photoshop Optional Plugins

Answer 2

It's not a Photoshop plugin, but I solve this problem by using HSL Color Picker, a web app with an easy-to-remember URL:

To transfer colors to and from Photoshop, copy and paste the web color value, since it gives the color information in a single value. (That's the #3faad4 value in the screenshot in the question.)

I, too, wish Photoshop had this feature. One can convert between HSB and HSL, but sometimes you really need HSL, as when dealing with CSS3 colors, which support HSL and RGB, but not HSB.