#1F3191 Hex Color
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A dark, cool blue with strong saturation, #1f3191 has a clear royal-blue cast rather than gray navy. Its serious, controlled tone suits finance, government, security, and corporate branding, especially as a dominant background or supporting color. Pair it with burgundy or warm cream for contrast. The hex code #1f3191 supports white body text at about 11:1 contrast.
Questions about #1f3191
What is #1f3191 in RGB, HSL and CMYK?
In RGB, #1f3191 is rgb(31, 49, 145), in HSL hsl(231, 65%, 35%) and in CMYK 79%, 66%, 0%, 43%.
What colors pair well with #1f3191?
Is #1f3191 a warm or cool color?
#1f3191 reads as a cool, strongly saturated blue because its hue leans toward royal blue rather than gray navy, giving interfaces a controlled, serious presence that suits formal and trust-focused layouts.
Is #1f3191 readable on white or black?
#1f3191 has a 11.01:1 contrast ratio on white and 1.90:1 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.