#00B3E4 Hex Color

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Hex color #00b3e4 graphic
Because black text offers high readability against this hue, it works well for UI elements like buttons or notification badges. The hex code #00b3e4 is highly saturated, so use it as a 10% accent color to avoid overwhelming your layout. It pairs effectively with dark charcoal or muted grays to balance that intense, artificial energy.

Questions about #00b3e4

What is #00b3e4 in RGB, HSL and CMYK?
In RGB, #00b3e4 is rgb(0, 179, 228), in HSL hsl(193, 100%, 45%) and in CMYK 100%, 21%, 0%, 11%. Browse more shades of blue with names and hex codes.
How should #00b3e4 be used in user interface design?
Because #00b3e4 is highly saturated, it works best as a targeted 10% accent color rather than a primary background to avoid overwhelming your layout. It pairs exceptionally well with charcoal or deep grays for high-contrast, readable UI elements like buttons or notification badges.
What color combinations work best with #00b3e4?
High-contrast neutrals like charcoal provide the best balance for this artificial, intense energy. If you need a softer look, pair it with muted slate tones to ground the brightness while maintaining the modern, technological feel of the hue.
Is #00b3e4 readable on white or black?
#00b3e4 has a 2.45:1 contrast ratio on white and 8.56:1 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.