#153D5A Hex Color
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Navy blue with an ashy, dusty undertone. #153d5a reads gloomy and serious, closer to gunmetal than sapphire. That low saturation is its strength: it holds up as a dominant base in corporate, nautical, or security-themed palettes without shouting. White text clears contrast requirements against it with room to spare. The hex code works hardest in dark mode interfaces and formal branding, where its cold, muted depth reads as steady rather than sad.
Questions about #153d5a
What is #153d5a in RGB, HSL and CMYK?
In RGB, #153d5a is rgb(21, 61, 90), in HSL hsl(205, 62%, 22%) and in CMYK 77%, 32%, 0%, 65%.
What colors pair well with #153d5a?
Warm accents like burgundy, rust, or muted gold keep this navy from reading flat. For text and UI elements, white and pale gray both clear contrast requirements comfortably against it.
Is #153d5a a warm or cool color?
It reads cool. The blue hue sits low in saturation and darkness, which gives it a cold, steely character rather than a bright or friendly one.
Is #153d5a readable on white or black?
#153d5a has a 11.36:1 contrast ratio on white and 1.84:1 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.