#397BB0 Hex Color
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Cool and moderately muted, #397bb0 is a mid-tone blue with a soft gray cast. Its restrained saturation supports trust and reliability, making it practical for finance, healthcare, security, and technology interfaces. Use the hex code #397bb0 as a supporting brand color with charcoal or warm white; black text provides about a 4.6:1 contrast ratio for small body copy.
Questions about #397bb0
What is #397bb0 in RGB, HSL and CMYK?
In RGB, #397bb0 is rgb(57, 123, 176), in HSL hsl(207, 51%, 46%) and in CMYK 68%, 30%, 0%, 31%. Browse more shades of blue with names and hex codes.
What colors pair well with #397bb0?
Pair #397bb0 with charcoal, warm white, or restrained neutrals to balance its cool blue; charcoal adds stronger text contrast, while warm white softens interfaces for finance, healthcare, security, and technology projects.
Is #397bb0 a warm or cool color?
#397bb0 reads as a cool, moderately muted blue because its mid-tone hue is softened by a gray cast rather than bright saturation. That restraint communicates trust and reliability, making it useful for calm, professional interfaces and supporting brand palettes.
Is #397bb0 readable on white or black?
#397bb0 has a 4.53:1 contrast ratio on white and 4.63:1 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 works for body text. Try other pairs in the contrast checker.