#1D138E Hex Color
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This intense, highly saturated indigo leans into a cool, authoritative darkness. As a background, #1d138e provides excellent contrast for white text, though its depth can dominate smaller layouts if overused. It works best as a moody, structural accent rather than a full-page flood. Pair this color with warm, muted golds or soft creams to keep the design from feeling too cold or sterile.
Questions about #1d138e
What is #1d138e in RGB, HSL and CMYK?
In RGB, #1d138e is rgb(29, 19, 142), in HSL hsl(245, 76%, 32%) and in CMYK 80%, 87%, 0%, 44%.
What colors pair well with #1d138e in a design scheme?
Is #1d138e suitable for large background areas?
#1d138e functions better as a deliberate, structural accent rather than a full-page background color because its extreme saturation can easily overwhelm a layout. If you must use it as a background, ensure your text elements are large and high-contrast to maintain accessibility.
Is #1d138e readable on white or black?
#1d138e has a 13.67:1 contrast ratio on white and 1.53:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works for body text and on black it is too faint for text. Try other pairs in the contrast checker.