Color

#0e39b9

#0e39b9
hex#0e39b9
rgbrgb(14, 57, 185)
hslhsl(225, 86%, 39%)
oklchoklch(0.417 0.205 264.3)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0652

Colors that go with #0e39b9

Charcoal, Crimson and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#b98e0e

#0e8eb9 · #390eb9

#b90e39 · #39b90e

Split-complementary

Open in tool →

#b9390e · #8eb90e

#b90e8e · #b98e0e · #0eb939

Contrast

#0e39b9 as textRatioAAAA largeAAAFix
Aaon white
9.11:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #416df1 as the text (4.68:1)
  • AAA: use #7192f4 as the text (7.12:1)
  • AA: or shift the background to #b8b8b8 (4.59:1)
  • AAA: or shift the background to #e3e3e3 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0e39b9 as the background.

Brands using this color

Fonts for this mood

#0e39b9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0e39b9
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0e39b9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0e39b9-9ca1c4-df754e-221f2d-e9eff1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md