Color

#581a04

#581a04
hex#581a04
rgbrgb(88, 26, 4)
hslhsl(16, 91%, 18%)
oklchoklch(0.315 0.097 38.3)
Closest name: Evil Cigar (#522000)Relative luminance 0.0282

Colors that go with #581a04

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 →

#044158

#580418 · #584404

#04581a · #1a0458

Split-complementary

Open in tool →

#045844 · #041858

#185804 · #044158 · #440458

Contrast

#581a04 as textRatioAAAA largeAAAFix
Aaon white
13.42:1passpasspassPasses AAA — no fix needed.
Aaon black
1.56:1failfailfail
  • AA: use #d6410a as the text (4.62:1)
  • AAA: use #f66a37 as the text (7.04:1)
  • AA: or shift the background to #969696 (4.54:1)
  • AAA: or shift the background to #bdbdbd (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #581a04 as the background.

Brands using this color

Fonts for this mood

#581a04 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #581a04
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 #581a04 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/581a04-c4ab9c-62cbb4-2d291f-f1e9eb?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