Lasers tend to be inferior to inkjets for raw color reproduction, especially on the low end (i.e. less than $25K).
That's because inkjets can cleanly render a single dot, allowing them to use sophisticated dithering schemes that finely spread microscopic dots (in the 4 or more ink colors available) all over the area in question. Not are the individual dots near-impossible to see, but the areal density of the dots can be adjusted very, very accurately and finely. Remember that the ratio of the densities of the different inks is what determines color, so accurate ink density leads to accurate color. For example, note that commercially-printed photos are all done with inkjet technology.
Lasers work by melting colored plastic powder into the fibers of the paper, aka fusing the toner to the paper. The problem is that melting causes close-by dots to slightly run together (clumping), and causes single dots to render poorly. These are basically the same problems that always existed with wet-ink printing, and the solution used in lasers is typically the same as well: halftoning. That involved placing groups of dots (let 'em clump!), where the print density is determined by the size of those groups vs. the amount of white space in between. The problem with that scheme begins with the fact that those groups of dots are quite visible--not a desirable thing quality-wise.
Laser printer designers accordingly try to keep the halftone dots' size to a minimum, but that comes at the cost of color accuracy. Remember that printers work with a grid of dots, with each dot either colored or not. (High-end lasers are a little different, but unless you have major bucks...) Let's say each group is 8 x 8 dots, 64 total, meaning you can only have 65 possible densities (64 + zero). Toner densities can only be varied in steps of 1/64th, whereas you really want steps of 1/1000 or better. There are schemes to stretch that 1/64th to the equivalent of maybe 1/250th, but that still can't touch inkjet color accuracy. And, you're stuck with ugly halftone dots.
On the plus side for lasers, inkjets use very thin inks that're absorbed into the paper. Those tend to slightly creep along the sponge-like paper fibers. That can make pages a little bit soft-looking unless you're printing on special non-fibrous paper like photo paper. Even after the page is dry, creeping can get a bit worse over time; humidity doesn't help. Of course printer makers have devised various fascinating tricks to minimize creeping on plain paper, but the problem's still there to a degree.
OTOH lasers melt the plastic toner just onto the surface, the toner's only molten for a very brief time, and the molten toner is relatively thick, so there's no creeping worth mentioning. Lines and text look crisp and stay that way.