Color

#660a10

#660a10
hex#660a10
rgbrgb(102, 10, 16)
hslhsl(356, 82%, 22%)
oklchoklch(0.329 0.123 25)
Closest name: Blood of Zeus (#640f09)Relative luminance 0.0308

Colors that go with #660a10

Teal, Copper and Crimson 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 →

#0a6660

#660a3e · #66320a

#10660a · #0a1066

Split-complementary

Open in tool →

#0a6632 · #0a3e66

#3e660a · #0a6660 · #320a66

Contrast

#660a10 as textRatioAAAA largeAAAFix
Aaon white
13:1passpasspassPasses AAA — no fix needed.
Aaon black
1.62:1failfailfail
  • AA: use #e81725 as the text (4.58:1)
  • AAA: use #f06a73 as the text (7.01:1)
  • AA: or shift the background to #999999 (4.56:1)
  • AAA: or shift the background to #bfbfbf (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 #660a10 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

#660a10 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660a10
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 #660a10 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660a10-c49e9c-62cb91-2d241f-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