Color

#04098f

#04098f
hex#04098f
rgbrgb(4, 9, 143)
hslhsl(238, 95%, 29%)
oklchoklch(0.302 0.198 265.1)
Closest name: darkblue (#00008b)Relative luminance 0.022

Colors that go with #04098f

Steel Blue, Charcoal and Cobalt 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 →

#908c04

#044f90 · #450490

#900408 · #089004

Split-complementary

Open in tool →

#904504 · #4f9004

#90044f · #908c04 · #049045

Contrast

#04098f as textRatioAAAA largeAAAFix
Aaon white
14.57:1passpasspassPasses AAA — no fix needed.
Aaon black
1.44:1failfailfail
  • AA: use #5b60fb as the text (4.51:1)
  • AAA: use #888cfc as the text (7.2:1)
  • AA: or shift the background to #8f8f8f (4.51:1)
  • AAA: or shift the background to #b5b5b5 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04098f as the background.

Brands using this color

Fonts for this mood

#04098f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04098f
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 #04098f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04098f-9f9cc4-df944e-251f2d-e9edf1?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