#45B4FF Hex Color
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Bright and highly saturated, #45b4ff is a cool blue with a slight cyan cast. Its clear, energetic finish supports trust and control in technology, finance, healthcare, and security interfaces. Use it as an accent beside navy or charcoal, since its intensity can overwhelm large areas. The hex code #45b4ff supports black text at about 9.2:1 contrast.
Questions about #45b4ff
What is #45b4ff in RGB, HSL and CMYK?
In RGB, #45b4ff is rgb(69, 180, 255), in HSL hsl(204, 100%, 64%) and in CMYK 73%, 29%, 0%, 0%.
What colors pair well with #45b4ff?
Does #45b4ff feel warm or cool?
#45b4ff reads as a cool blue because its slight cyan cast shifts the hue toward crisp, watery tones, while its high saturation adds energy rather than warmth or softness in the overall impression. That combination suits technology, healthcare, finance, and security interfaces that need a clear, controlled feel.
Is #45b4ff readable on white or black?
#45b4ff has a 2.27:1 contrast ratio on white and 9.22:1 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.