Blue Color Picker & Palette
Blue is a calming, trustworthy color widely used in tech, finance, and healthcare design. Explore blue in every format and build harmonious schemes.
#0000ff
rgb(0, 0, 255)
hsl(240, 100%, 50%)
oklch(0.452 0.313 264.1)
cmyk(100%, 100%, 0%, 0%)
Use Cases
Corporate and tech branding
Healthcare and medical interfaces
Social media platforms
Trust and security indicators
Tips
Lighter blues (#87CEEB) work great for backgrounds
Dark navy (#000080) conveys authority
Blue is the most universally liked color
FAQ
What is the HEX code for blue?
Pure blue is #0000FF — zero red, zero green, and maximum blue (255) in the RGB model.
What colors complement blue?
Blue's complement is orange. It also pairs beautifully with gold, white, gray, and analogous colors like teal and indigo.
Is blue accessible on white backgrounds?
Pure blue (#0000FF) has a contrast ratio of 8.59:1 against white, passing both WCAG AA and AAA for all text sizes.
How do I make blue in HSL?
Blue (#0000FF) in HSL is hsl(240, 100%, 50%). Hue 240 degrees, full saturation, 50% lightness.
What are popular blue shades for web design?
Popular blues include Dodger Blue (#1E90FF), Royal Blue (#4169E1), Steel Blue (#4682B4), and Navy (#000080).