A detailed comparison of #181830 and #203018 — split-complementary colors
background: linear-gradient(to right, #181830, #203018);
With a contrast ratio of 1.24:1, 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 140\u00B0 hue difference, making them split-complementary. They offer moderate contrast — versatile for card designs, illustrations, and layered UI compositions.