Deep Blue Color
Deep Blue is a blue color with hex code #040273. This page covers its meaning, all color values, harmonies, colors that go with deep blue, shades, tints, similar colors, CSS examples, FAQs, and WCAG contrast ratios.
Deep Blue Color Values
What Does Deep Blue Mean?
Deep Blue belongs to the blue family of colors. Blue wins popularity surveys in every culture that runs them, and corporate design reflects it. Trust and stability are the usual words people reach for. Dark navies project authority, pale blues open a layout up, and almost nothing clashes with it. Being on the dark side, Deep Blue adds weight and depth. It suits text, shadows, and grounding elements more than wide-open backgrounds.
In the ISCC-NBS color naming system, Deep Blue is classified as a blue (nearest centroid: vivid purplish blue, #30267A).
Color Harmonies
Complementary
Analogous
Triadic
Colors That Go With Deep Blue
Deep Blue and #727402 are complements, parked opposite each other on the wheel. Together they hit maximum contrast, so a rough 70/30 split keeps the pairing from shouting.
Analogous neighbors — #023974 and #3D0274, which sit beside deep blue on the wheel. Pairings like this feel calm and settled, which suits backgrounds and gradients.
For an energetic three-color palette, pair deep blue with triadic partners #740402 and #027404. All three sit evenly spaced around the wheel, so the scheme stays lively without clashing.
Build and test these combinations in our Color Wheel Tool or check text readability with the Contrast Checker.
Tints and Shades
Tints (lighter)
Shades (darker)
Similar Colors
- Dark Royal Blue —
#02066F(Delta E 4) - Deep Koamaru —
#1B127B(Delta E 6) - Navy —
#000080(Delta E 7) - Arapawa —
#110C6C(Delta E 9) - Paris M —
#26056A(Delta E 9)
CSS Examples
.text { color: #040273; }
.background { background-color: #040273; }
.border { border: 2px solid #040273; }
.shadow { box-shadow: 0 4px 6px #04027340; }WCAG Contrast
Frequently Asked Questions
What is the hex code for deep blue?
Deep Blue has the hex code #040273. In RGB notation it is rgb(4, 2, 115), in HSL it is hsl(241, 97%, 23%), and its OKLCH value is 0.255, 0.171, 265.6.
What does the color deep blue mean?
Blue-family colors like deep blue carry distinct psychological associations. Deep Blue belongs to the blue family of colors. Blue wins popularity surveys in every culture that runs them, and corporate design reflects it. Trust and stability are the usual words people reach for. Dark navies project authority, pale blues open a layout up, and almost nothing clashes with it. Being on the dark side, Deep Blue adds weight and depth. It suits text, shadows, and grounding elements more than wide-open backgrounds.
What colors go with deep blue?
Deep Blue has three easy routes: its complement #727402 for punch, its neighbors #023974 and #3D0274 for something calmer, or triadic partners #740402 and #027404 when you want energy.
Is deep blue a standard web color?
No — Deep Blue is not a CSS keyword. Use its hex value #040273 or any RGB/HSL equivalent in your stylesheets.
How do I make deep blue lighter or darker?
To lighten deep blue, add white to create tints; to darken it, add black to create shades. The tints and shades table above shows five computed steps of each, from #BFBEFE (lightest tint) to #010014 (darkest shade).
About Deep Blue
Deep Blue is classified as a Blue in the ISCC-NBS color naming system, within the Blue hue family. It has The color is recognized by XKCD, meodai.
Use our Color Converter to convert #040273 to any other color format, or explore the Color Wheel to find harmonious color combinations.