Color

#641f1b

#641f1b
hex#641f1b
rgbrgb(100, 31, 27)
hslhsl(3, 57%, 25%)
oklchoklch(0.347 0.101 26.9)
Closest name: Bloodlust (#6b1c1a)Relative luminance 0.0377

Colors that go with #641f1b

Teal, Blue and Copper 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 →

#1b6064

#641b3c · #64431b

#1b641f · #1f1b64

Split-complementary

Open in tool →

#1b6443 · #1b3c64

#3c641b · #1b6064 · #431b64

Contrast

#641f1b as textRatioAAAA largeAAAFix
Aaon white
11.97:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #cb4a43 as the text (4.6:1)
  • AAA: use #da7c77 as the text (7.13:1)
  • AA: or shift the background to #a1a1a1 (4.63:1)
  • AAA: or shift the background to #c7c7c7 (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 #641f1b 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

#641f1b reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #641f1b
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 #641f1b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/641f1b-c4a39c-62cb9d-2d261f-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