Color

#540d18

#540d18
hex#540d18
rgbrgb(84, 13, 24)
hslhsl(351, 73%, 19%)
oklchoklch(0.295 0.102 18.1)
Closest name: Burned (#520b00)Relative luminance 0.0224

Colors that go with #540d18

Charcoal, 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 →

#0d5449

#540d3b · #54260d

#18540d · #0d1854

Split-complementary

Open in tool →

#0d5426 · #0d3b54

#3b540d · #0d5449 · #260d54

Contrast

#540d18 as textRatioAAAA largeAAAFix
Aaon white
14.51:1passpasspassPasses AAA — no fix needed.
Aaon black
1.45:1failfailfail
  • AA: use #de2b46 as the text (4.54:1)
  • AAA: use #e97284 as the text (7.2:1)
  • AA: or shift the background to #919191 (4.6:1)
  • AAA: or shift the background to #b5b5b5 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #540d18 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

#540d18 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #540d18
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 #540d18 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/540d18-c49c9e-62cb89-2d231f-f1e9ee?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