#00A4EF Hex Color
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This intense, saturated blue demands attention without feeling abrasive. Because it is so bright, #00a4ef works best as a punchy accent color or call-to-action button rather than a primary background. It pairs exceptionally well with charcoal grays for a clean, professional aesthetic in UI design. The hex code for this high-energy shade is #00a4ef, which offers excellent readability with black text.
Questions about #00a4ef
What is #00a4ef in RGB, HSL and CMYK?
In RGB, #00a4ef is rgb(0, 164, 239), in HSL hsl(199, 100%, 47%) and in CMYK 100%, 31%, 0%, 6%.
Where should I use #00a4ef in my UI designs?
#00a4ef excels as a high-contrast accent for interactive elements like buttons, toggle switches, or notification badges. Because of its high saturation, it can overwhelm a layout if used for large backgrounds, so keep it focused on areas that require immediate user action.
What colors pair well with #00a4ef?
This blue creates a professional and balanced look when paired with charcoal or dark neutral grays, which allow the vibrant blue to stand out without competing for attention. It also provides a sharp, energetic contrast against clean white backgrounds in minimalist interface designs.
Is #00a4ef readable on white or black?
#00a4ef has a 2.77:1 contrast ratio on white and 7.55:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it is too faint for text and on black it works for body text. Try other pairs in the contrast checker.