@designparser: This is called blue-yellow color vision deficiency, specifically tritanopia. But blue and green can be confused, along with some yellow and red hues. Tritanopia results from a lack of functional S-cones in the eye. It's rare. The prevalence of tritan defects varies depending on the study and whether they are congenital or acquired. Accessible design never relies on color alone. Save this. Free design cheatsheet at designparser.de, link in bio #colorblindness#accessibility#uxdesign