A detailed comparison of #3BF7E7 and #421EF6 — adjacent colors
background: linear-gradient(to right, #3BF7E7, #421EF6);
With a contrast ratio of 5.69:1, this pair meets WCAG AA for normal text. Use Cyan Tone Pure as the background and Violet Radiant Pure as text for optimal readability.
These colors have a 75\u00B0 hue difference, making them adjacent. They offer moderate contrast — versatile for card designs, illustrations, and layered UI compositions.