I've been an instructional designer for a very long time, but only recently started getting more interested in learning about UI/UX design. To start, I've been trying to think more deliberately about colors and have been considering how important it is to use specific colors for objects that you want users to interact with.
For reference, I work primarily in Articulate Storyline, and since that tool's so popular I assume most people are familiar with it, but in the theme colors you get six "accent" colors. I mostly pull from those six colors (usually only four or five of them, though).
One of them I consider the "primary" color and one the main "accent" color (even though they're all called accent colors in Storyline). Students will see both of these colors on almost every slide. However, I also want to use the main accent color for buttons. Things like start, submit, etc.
Would that potentially introduce too much cognitive load for users? If I'm using the same accent color too much for things that users need to interact with, will it be difficult for them to quickly identify what is what and what they need to do with it? Maybe interactive objects need to stand out more with a different color?
And then in addition to that, should different buttons/interactive objects also be different colors? Like, one color for a "start" type button that takes the user down a specific branch or path but a different color for a "submit" button?
My only concern is I don't want to be using so many colors that the whole design starts looking ridiculous.