A detailed comparison of #C51111 and #11C5C5 — complementary colors
background: linear-gradient(to right, #C51111, #11C5C5);
With a contrast ratio of 2.84:1, this pair does not meet WCAG guidelines for text. Use these colors as adjacent blocks, gradients, or decorative accents rather than text-on-background pairings.
These colors have a 180\u00B0 hue difference, making them complementary. Their high contrast creates visual energy — great for call-to-action buttons, hero sections, and brand accents.