A detailed comparison of #99D520 and #3E20D5 — complementary colors
background: linear-gradient(to right, #99D520, #3E20D5);
With a contrast ratio of 5.01:1, this pair meets WCAG AA for normal text. Use Violet Core Vivid as the background and Olive Core Vivid as text for optimal readability.
These colors have a 170\u00B0 hue difference, making them complementary. Their high contrast creates visual energy — great for call-to-action buttons, hero sections, and brand accents.