#0303BC Hex Color
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This intense, saturated blue delivers a heavy dose of authority. Because #0303bc is so vivid, it works best as a primary brand color or strong UI accent rather than a full-page background, where it can overwhelm the eye. It offers excellent legibility with white text at a 12.0:1 contrast ratio. Designers choose this hex code for applications requiring a sense of stability, professionalism, and institutional trust.
Questions about #0303bc
What is #0303bc in RGB, HSL and CMYK?
In RGB, #0303bc is rgb(3, 3, 188), in HSL hsl(240, 97%, 37%) and in CMYK 98%, 98%, 0%, 26%.
How should I use #0303bc in digital interface design?
#0303bc works best as a primary action color or a strong accent for buttons and links. Because of its extreme saturation, avoid using it for large text blocks or full-screen backgrounds to prevent visual fatigue and maintain readability.
What colors pair well with #0303bc?
This vibrant blue pairs exceptionally well with neutral tones like crisp white or light gray to let the intensity shine. For a sophisticated contrast, introduce complementary accents like a warm gold or a soft cream to balance the weight.
Is #0303bc readable on white or black?
#0303bc has a 12.04:1 contrast ratio on white and 1.74:1 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.