vowstar@gmail.com Huang Rui This package carefully selects and defines 9 colors for 13 hues each. All colors with the same suffix number have equal luminance level. Also the color black is of level 0, and the color white is of level 10. By simply choosing two colors in the above list, which differ in level by at least 5, as foreground and background colors, you will get proper WCAG Color Contrast. 该包精心选择并定义了 9 种颜色，每种颜色 13 种色调。所有具有相同后缀 编号的颜色都具有相同的亮度级别。黑色的级别为 0，白色的级别为 10。 只需在上面的列表中选择两种颜色（级别相差至少 5）作为前景色和背景色， 您将获得正确的 WCAG 颜色对比度。