Color

#11403b

#11403b
hex#11403b
rgbrgb(17, 64, 59)
hslhsl(174, 58%, 16%)
oklchoklch(0.339 0.051 185.1)
Closest name: Botanical Night (#12403c)Relative luminance 0.041

Colors that go with #11403b

Sea Green, Teal and Amber 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 →

#401116

#114024 · #112e40

#3c1140 · #403c11

Split-complementary

Open in tool →

#40112e · #402411

#241140 · #401116 · #2e4011

Contrast

#11403b as textRatioAAAA largeAAAFix
Aaon white
11.54:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #23857b as the text (4.71:1)
  • AAA: use #2da99d as the text (7.27:1)
  • AA: or shift the background to #a3a3a3 (4.57:1)
  • AAA: or shift the background to #cccccc (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #11403b as the background.

Brands using this color

Fonts for this mood

#11403b reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #11403b
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 #11403b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/11403b-a2bebe-d459a1-1f292d-e9f1ed?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