Steelblue

Steelblue is a named color in the CSS color system. In web color notation it has the hex value #4682B4 and RGB components (70, 130, 180). Its hue, saturation, and lightness are approximately 207 degrees, 44 percent, and 49 percent, placing it as a medium blue with cool undertones.

The name reflects a color often associated with polished steel. It sits between blue and blue-gray on the color spectrum and is commonly used in design to convey professionalism, reliability, and calmness. It is a standard named color in CSS and appears widely in digital palettes and style guides.

Applications: In web and UI design, steelblue is used for headers, call-to-action accents, and charts. It pairs well with white, gray, and tan, and can serve as a neutral alternative to darker blues. For accessibility, steelblue generally provides good contrast on light backgrounds, but designers should verify contrast ratios against specific foreground and background colors to ensure readability for users with visual impairments.

Related colors include lightsteelblue, a lighter variant, and other steel-related blues. The term steelblue is distinct from the general phrase “steel blue” and from other color systems; in CSS, steelblue is a defined named color recognized by modern browsers.