#0004F9 Hex Color
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This hyper-saturated, electric blue commands attention with its intense, artificial glow. Because it is so vivid, #0004f9 can easily overwhelm a layout, so it works best as a sharp accent rather than a background. White text sits comfortably against this hex code, maintaining excellent readability for UI buttons or alerts. Pair it with soft grays to ground the energy of this piercing, tech-forward hue.
Questions about #0004f9
What is #0004f9 in RGB, HSL and CMYK?
In RGB, #0004f9 is rgb(0, 4, 249), in HSL hsl(239, 100%, 49%) and in CMYK 100%, 98%, 0%, 2%.
How should I use #0004f9 in a website design?
Because #0004f9 is so visually intense, use it sparingly as a strategic accent color for call-to-action buttons or important alerts. It demands attention immediately, so avoid using it for body text or large background areas where it could cause significant eye strain.
What colors create a balanced palette with #0004f9?
To ground the high energy of #0004f9, pair it with neutral tones like charcoal or cool silver grays. These muted companions allow the electric blue to pop without overwhelming the overall layout or making the interface feel difficult to read.
Is #0004f9 readable on white or black?
#0004f9 has a 8.80:1 contrast ratio on white and 2.38:1 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.