Color

#840105

#840105
hex#840105
rgbrgb(132, 1, 5)
hslhsl(358, 98%, 26%)
oklchoklch(0.386 0.157 28.2)
Closest name: maroon (#800000)Relative luminance 0.0494

Colors that go with #840105

Teal, Crimson and Taupe 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 →

#01837f

#830147 · #833e01

#068301 · #010683

Split-complementary

Open in tool →

#01833e · #014783

#478301 · #01837f · #3e0183

Contrast

#840105 as textRatioAAAA largeAAAFix
Aaon white
10.57:1passpasspassPasses AAA — no fix needed.
Aaon black
1.99:1failfailfail
  • AA: use #ed020a as the text (4.61:1)
  • AAA: use #fd6268 as the text (7.12:1)
  • AA: or shift the background to #ababab (4.6:1)
  • AAA: or shift the background to #d4d4d4 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #840105 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

#840105 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #840105
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 #840105 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/840105-c49f9c-62cb95-2d251f-f1e9ed?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