#3F515D Hex Color

Muted blue #3f515d pairs well with off-white, burgundy, rust, and sage, which add warmth without breaking its restrained character. Use a warm accent sparingly, especially when #3f515d carries most of the layout.

White text has about an 8.2:1 contrast ratio on #3f515d, exceeding the WCAG AA 4.5:1 requirement for body text. It works well for navigation, labels, and small interface copy, provided the typeface and size remain practical.