Color Contrast
Use of color should be limited, especially with text. Your safest bet is always black text on a white background. Colors must meet contrast ratio requirements. (There are free color contrast checkers available online if you must use color.) People with low vision or color blindness may not be able to read text on a colored background or even red or orange text on a white background may not meet contrast requirements.
Generally speaking, color contrast for text should be at least 4.5:1. There are some differences if the text is very large (contrast can be 3:1) or if the text is in a logo or is purely decoration. View WCAG Color Contrast success criteria.
Additionally, colors should never be the only way information is conveyed. (Different colored text or different colored lines should never be the only way to discern different information or datasets.)
Review our Design Standards for some tips on how to utilize Manatee County colors in a way that meets color contrast requirements.
Color Contrast Checkers