Navbar Labels becomes blur when I changed the color

Describe the bug In AdminLTE-3.1, I tried to change the Header Navbar color from white to danger as shown below:

<nav class="main-header navbar navbar-expand navbar-danger navbar-light">

But the resulting Navbar header looks blur. The labels are no more clear. See it below:

How do I resolve this and make the labels clear and legible?

Thanks

[REJack]

I’ve tested it with v3.2 (master) and it works, if I replace navbar-light with navbar-dark.

Then it looks like this:

[noblemfd]

Thanks so much @REJack