#101E51 Hex Color
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#101e51 is a dark, cool blue with muted saturation and a matte, almost ink-like finish. Its low lightness gives interfaces and formal branding a serious, controlled presence. Use it as a dominant background with burgundy or warm gray accents. This hex code supports white body text clearly, making it practical for dark mode, finance, security, and corporate design.
Questions about #101e51
What is #101e51 in RGB, HSL and CMYK?
In RGB, #101e51 is rgb(16, 30, 81), in HSL hsl(227, 67%, 19%) and in CMYK 80%, 63%, 0%, 68%. Browse more shades of blue with names and hex codes.
What colors pair well with #101e51?
Burgundy and warm gray pair well with #101e51, adding restrained warmth without competing with its cool, ink-like base; muted blush or dusty rose can soften the palette for editorial, hospitality, or lifestyle layouts.
Where does #101e51 work well in design?
#101e51 works well for dark-mode surfaces, navigation bars, finance or security interfaces, and formal brand layouts where a controlled, dependable mood matters; pair it with white text and warm accents to prevent the composition from feeling flat.
Is #101e51 readable on white or black?
#101e51 has a 15.83:1 contrast ratio on white and 1.32:1 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.