無障礙檢測

WCAG 2.2 之前都沒有分前後景顏色對比，3 之後同樣兩個顏色，前後景顏色會有對比差異。

WCAG 2.2

• https://colorable.jxnblk.com/ 挑選兩個顏色，檢查對比度以及預覽感覺

• https://www.learnui.design/tools/accessible-color-generator.html

• https://color.adobe.com/zh/create/color-contrast-analyzer

• WebAIM: Contrast Checker

• Colorblind Web Page Filter

WCAG 3

• APCA Contrast tools

• Does the contrast ratio actually predict the legibility of website text?

色盲

• https://www.color-blindness.com/coblis-color-blindness-simulator/