Just do what everyone in CO does and post a huge range. "$20000 - $100,000" for example.
=================== Additional Information (Colorado only) Minimum Salary of $198,000 - $212,000 + bonus + equity + benefits. Note: Disclosure as required by sb19-085 (8-5-20) of the minimum salary compensation range for this role when being hired into our offices in Colorado.
And AFAIUI, they don't really have that much of a problem with actually hiring people a little above the range. It's thought that the labor market pressures of stating too low of a salary range cutting into your talent pool is an appropriate counteraction.
I agree that there's still room for discrimination, but it's a step up from what it was, particularly on the lower end of the scale. I know of a lot of people in the 50k-60k range that were able to increase their salary because of this law.