chroma_contrast: Contrast between two colors
In dreamRs/colorscale: Create a Color Scale from a Single Color

Description Usage Arguments Value Examples

Computes the WCAG contrast ratio between two colors. A minimum contrast of 4.5:1 is recommended to ensure that text is still readable against a background color.

1	chroma_contrast(color1, color2)

`color1`	Hexadecimal string or a name for color.
`color2`	Hexadecimal string or a name for color.

a numeric value

chroma_contrast("pink", "hotpink")


# black on light grey => good
chroma_contrast("#e3e3e3", "black")

# black on dark grey => bad
chroma_contrast("#393939", "black")