#647BF4 Hex Color
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This intense, saturated indigo commands attention without feeling aggressive. As a bright, high-chroma hue, the hex code #647bf4 works best as an accent color for UI highlights rather than a full page background. It maintains solid legibility with black text, offering a 5.7:1 contrast ratio. Try pairing it with neutral tones if you are learning how to make gray.
Questions about #647bf4
What is #647bf4 in RGB, HSL and CMYK?
In RGB, #647bf4 is rgb(100, 123, 244), in HSL hsl(230, 87%, 67%) and in CMYK 59%, 50%, 0%, 4%.
How does #647bf4 perform in user interface design?
This shade functions best as an interactive element or accent rather than a background color. Its high saturation commands user attention, making it ideal for primary buttons or state-specific highlights where you need to guide the user's eye without feeling harsh or overwhelming.
What colors pair well with #647bf4?
Pair #647bf4 with neutral tones to anchor its intensity. It works exceptionally well alongside charcoal for text contrast, or with soft off-whites to create a modern, tech-focused palette that keeps the interface feeling clean and professional.
Is #647bf4 readable on white or black?
#647bf4 has a 3.69:1 contrast ratio on white and 5.68:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works only for large text (24px, or 18.5px bold) and on black it works for body text. Try other pairs in the contrast checker.