HEX Color Code #11377D

Defined by its dark blue character, #11377D offers the kind of dependable color foundation that production interfaces need. Below you will find its complete breakdown — RGB, HSL, CMYK — along with design guidance and accessibility notes.

What Color Is #11377D?

#11377D translates to RGB(17, 55, 125), producing a dark blue that balances its channels evenly. The overall perceived brightness of 52/255 means it registers as a darker tone that anchors visual hierarchy.

Color Meaning of #11377D

In color psychology, blue hues evoke serenity, intelligence, and authority. The dark quality of #11377D adds a layer of sophistication and seriousness, making it effective for brands that want to combine blue emotional resonance with refined aesthetics.

Where to Use HEX Code #11377D

Brand identity systems — dark blue works as a primary or secondary swatch in logo lockups

Card hover states and focus rings that provide clear visual feedback without overwhelming the layout

Dashboard headers and KPI tiles where blue tones lend a professional, data-forward aesthetic

Marketing landing pages targeting audiences who respond to blue color psychology

Mobile app tab bars and status indicators that must remain legible across varying ambient lighting

Print collateral converted via CMYK — this shade holds well in four-color process printing

Similar HEX Color Codes

#20466E

#001E64

#3414A0

Complementary purple tone for palette coordination

#000A50

Nearby color value offering slightly different brightness

#486E46

#0000BE

Adjacent shade useful for gradient transitions

#008232

Comparable cyan alternative with distinct character

HEX Code #11377D in Design Systems

Modern design systems would assign #11377D a semantic token like --brand-blue-base and generate a tonal scale around it. Use HSL to create lighter tints (increase L by 10-15% for hover backgrounds) and darker shades (decrease L by 10-15% for pressed states), keeping H and S constant.

For contrast: white text on this background meets WCAG AA comfortably. For AAA compliance, verify the specific ratio — aim above 7:1 for body text. Avoid using this shade for thin text on medium-toned backgrounds.

FAQ About HEX Color Code #11377D

What color is #11377D?

This HEX code renders as a dark blue shade on screen. Its RGB components (17, 55, 125) create a blue-dominant appearance with dark depth.

Is #11377D a dark or light color?

Dark. The weighted luminance formula (0.299R + 0.587G + 0.114B) gives #11377D a score of 52/255, placing it below the midpoint. This classification affects which text colors achieve adequate contrast.

What colors go well with #11377D?

#11377D pairs well with contrasting colors opposite it on the color wheel (≈39°) for dynamic compositions. For cohesive, calm palettes, combine it with neighboring hues at ±30° and tinted neutrals in the same blue family.

Can I use #11377D for branding?

Yes. #11377D works as a brand color when blue-family associations — trust, reliability, and professionalism — align with your positioning. Define it formally in your brand guidelines with permitted tints, shades, and pairing rules for consistent application.

How do I convert #11377D to other color formats?

The full conversion: RGB(17, 55, 125), HSL(219°, 76%, 28%). CMYK values depend on the print profile but approximate C:93% M:78% Y:51% K:0%. Our converter tools handle all formats instantly.