Lighten doesn't work on black color

[mk0y]

Hi,

If you try

color('#000000').lighten(0.5).hex()

you'll get again #000000 color.

Is this a bug?

Cheers!

[Qix-]

Lighten is based on a ratio (multiplication), not absolute values (addition), of the lightness channel in the HSL model.

Therefore, the lightness of black is 0, when you lighten by 0.5, you're doing 0 * 0.5 - which is still 0.

For the question of whether or not this is a bug, the answer is objectively "no" - whether or not it's preferred is an ongoing discussion in #53, one that I am very much open to.

Feel free to chime in there :)

Closing as a duplicate.

[mririgoyen]

I'm sorry, but I absolutely have to disagree. This package makes the bold statement:

Manipulation functions by CSS tools like Sass, LESS, and Stylus.

Using lighten in Sass works on black. This is absolutely a bug.

[Qix-]

@goyney You seem to have missed my paragraph about objectivity vs. subjectivity:

For the question of whether or not this is a bug, the answer is objectively "no" - whether or not it's preferred is an ongoing discussion in #53, one that I am very much open to.

However, I don't see a comment there from you. Perhaps that would have been a good place to start 👍