#1B2A47 Hex Color
Deep Navy With a Dusty Matte Finish

Close to suit-jacket navy but duller, #1b2a47 reads as a muted, ashy blue. The hex code works hardest as a dominant base or dark UI background, where its low saturation stays calm without tipping into black. White text over it reaches about 14.3:1 contrast, well past AA. Pair it with burgundy or brass instead of the usual bright blue.
Questions about #1b2a47
What is #1b2a47 in RGB, HSL and CMYK?
In RGB, #1b2a47 is rgb(27, 42, 71), in HSL hsl(220, 45%, 19%) and in CMYK 62%, 41%, 0%, 72%.
What colors pair well with #1b2a47?
Try burgundy or muted brass for warmth, or dusty sage for a softer neighboring tone. Bright blues tend to wash it out, so keep nearby colors muted as well.
Is #1b2a47 a warm or cool color?
It reads cool. The blue base carries almost no saturation, so its temperature stays low, though the gray dust in it softens what could otherwise be a stark navy.
Is #1b2a47 readable on white or black?
#1b2a47 has a 14.29:1 contrast ratio on white and 1.46:1 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.