#043D9C Hex Color

A commanding and stable deep royal blue

Hex color #043d9c graphic
This saturated, dark blue communicates authority and professional stability. Because it sits on the cooler end of the spectrum, #043d9c works effectively as a dominant base for corporate or technology branding. It provides excellent contrast for white text, making it highly readable for UI interfaces. Use this hex code sparingly as an accent to avoid making dark mode designs feel too heavy or overly formal.

Questions about #043d9c

What is #043d9c in RGB, HSL and CMYK?
In RGB, #043d9c is rgb(4, 61, 156), in HSL hsl(218, 95%, 31%) and in CMYK 97%, 61%, 0%, 39%.
How can I use #043d9c effectively in a user interface?
#043d9c functions best as a primary action color or a dominant brand hue because it maintains excellent readability against white text. Use it sparingly as an accent in dark mode layouts to prevent the overall interface from feeling too heavy.
What colors pair well with #043d9c for a professional palette?
This deep blue balances beautifully with light gray or crisp white for a clean, corporate aesthetic. For a more sophisticated look, introduce a soft cream or a subtle gold accent to add warmth to its cooler, authoritative tone.
Is #043d9c readable on white or black?
#043d9c has a 9.75:1 contrast ratio on white and 2.15:1 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.