Color

#18581f

#18581f
hex#18581f
rgbrgb(24, 88, 31)
hslhsl(127, 57%, 22%)
oklchoklch(0.406 0.11 144.9)
Closest name: O Tannenbaum (#005522)Relative luminance 0.0727

Colors that go with #18581f

Charcoal, Blue and Emerald Green 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 →

#581851

#315818 · #185840

#201858 · #582018

Split-complementary

Open in tool →

#401858 · #581831

#183158 · #581851 · #584018

Contrast

#18581f as textRatioAAAA largeAAAFix
Aaon white
8.56:1passpasspassPasses AAA — no fix needed.
Aaon black
2.45:1failfailfail
  • AA: use #258831 as the text (4.64:1)
  • AAA: use #2fac3e as the text (7.09:1)
  • AA: or shift the background to #bdbdbd (4.55:1)
  • AAA: or shift the background to #ebebeb (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 #18581f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#18581f reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #18581f
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 #18581f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18581f-a2bea8-aa4edf-1f2d27-ecf1e9?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