Color

#581f04

#581f04
hex#581f04
rgbrgb(88, 31, 4)
hslhsl(19, 91%, 18%)
oklchoklch(0.322 0.092 42.3)
Closest name: Evil Cigar (#522000)Relative luminance 0.0306

Colors that go with #581f04

Crimson, Denim 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 →

#043d58

#580413 · #584804

#04581f · #1f0458

Split-complementary

Open in tool →

#045848 · #041358

#135804 · #043d58 · #480458

Contrast

#581f04 as textRatioAAAA largeAAAFix
Aaon white
13.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.61:1failfailfail
  • AA: use #cd470a as the text (4.5:1)
  • AAA: use #f56d2e as the text (7.11:1)
  • AA: or shift the background to #999999 (4.57:1)
  • AAA: or shift the background to #bfbfbf (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #581f04 as the background.

Brands using this color

Fonts for this mood

#581f04 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #581f04
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 #581f04 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/581f04-c4ad9c-62cbb9-2d2a1f-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