#0000F4 Hex Color
An intense and deeply electric blue
This intense blue is deeply saturated and commands attention with its severe, electric quality. Because of its high chroma, #0000f4 works best as a bold accent or a functional UI element rather than a large background. It pairs exceptionally well with cool greys or crisp white text, providing high contrast for reliable readability in tech-focused designs. The hex code for this primary tone is #0000f4.
Questions about #0000f4
What is #0000f4 in RGB, HSL and CMYK?
In RGB, #0000f4 is rgb(0, 0, 244), in HSL hsl(240, 100%, 48%) and in CMYK 100%, 100%, 0%, 4%.
How can I effectively use #0000f4 in UI design?
#0000f4 works best as a functional accent rather than a background because of its high chroma and intensity. It pairs well with charcoal or crisp white text to ensure readability for buttons, call-to-actions, or navigation elements.
Is #0000f4 readable on white or black?
#0000f4 has a 9.10:1 contrast ratio on white and 2.30:1 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.