Change Argon CSS colors?

[aiccu]

This may be really obvious, but figured I'd ask here. Is there any way to manually change the card background colors outside of the Argon styles (e.g. primary, secondary, success, warning, etc. as shown here: https://demos.creative-tim.com/argon-design-system/docs/foundation/colors.html)

Below, I was able to switch the overall card color using css, but cannot "fix" the basic argonInfoCards