Color

#09113a

#09113a
hex#09113a
rgbrgb(9, 17, 58)
hslhsl(230, 73%, 13%)
oklchoklch(0.202 0.08 269.3)
Closest name: Infinite Night (#071037)Relative luminance 0.0076

Colors that go with #09113a

Charcoal, Dark Olive Green and Rust 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 →

#393109

#092939 · #190939

#390911 · #113909

Split-complementary

Open in tool →

#391909 · #293909

#390929 · #393109 · #093919

Contrast

#09113a as textRatioAAAA largeAAAFix
Aaon white
18.22:1passpasspassPasses AAA — no fix needed.
Aaon black
1.15:1failfailfail
  • AA: use #536be4 as the text (4.59:1)
  • AAA: use #7f91eb as the text (7.15:1)
  • AA: or shift the background to #808080 (4.61:1)
  • AAA: or shift the background to #a1a1a1 (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 #09113a as the background.

Brands using this color

Fonts for this mood

#09113a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #09113a
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 #09113a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/09113a-9c9ec4-df814e-231f2d-e9eef1?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