If you choose to use color, you should ensure adequate color contrast, at least a 4.5:1 contrast ratio between the text and background and accessibility friendly colors. Users should be able to scan a ...

n.d.). Text color that is too similar to the background color will be hard to read (Kalbag, 2017, p. 75). Poor contrast between the foreground and background colors also makes content harder to see ...

An accessibility checker tool for validating the color contrast based on WCAG 2.0 and WCAG 2.1 standard. The formula (L1/L2) for contrast is based on [ISO-9241-3] and [ANSI-HFES-100-1988 ...