Color

#09455d

#09455d
hex#09455d
rgbrgb(9, 69, 93)
hslhsl(197, 82%, 20%)
oklchoklch(0.367 0.07 231.3)
Closest name: Capital Blue (#1a4157)Relative luminance 0.051

Colors that go with #09455d

Crimson, Royal Blue and Sienna 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 →

#5d2109

#095d4b · #091b5d

#5d0945 · #455d09

Split-complementary

Open in tool →

#5d091b · #5d4b09

#4b095d · #5d2109 · #1b5d09

Contrast

#09455d as textRatioAAAA largeAAAFix
Aaon white
10.39:1passpasspassPasses AAA — no fix needed.
Aaon black
2.02:1failfailfail
  • AA: use #1180ac as the text (4.71:1)
  • AAA: use #16a2da as the text (7.21:1)
  • AA: or shift the background to #ababab (4.53:1)
  • AAA: or shift the background to #d4d4d4 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #09455d as the background.

Brands using this color

Fonts for this mood

#09455d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #09455d
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 #09455d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/09455d-9cb4c4-df4e6b-1f232d-e9f1ef?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