Color

#09368b

#09368b
hex#09368b
rgbrgb(9, 54, 139)
hslhsl(219, 88%, 29%)
oklchoklch(0.365 0.149 261.7)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0456

Colors that go with #09368b

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 →

#8b5d09

#09788b · #1c098b

#8b0936 · #368b09

Split-complementary

Open in tool →

#8b1c09 · #788b09

#8b0978 · #8b5d09 · #098b1c

Contrast

#09368b as textRatioAAAA largeAAAFix
Aaon white
10.98:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #276ef1 as the text (4.59:1)
  • AAA: use #6195f5 as the text (7.13:1)
  • AA: or shift the background to #a6a6a6 (4.51:1)
  • AAA: or shift the background to #cfcfcf (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #09368b as the background.

Brands using this color

Fonts for this mood

#09368b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #09368b
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 #09368b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/09368b-9ca5c4-df664e-211f2d-e9f0f1?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