Color

#660605

#660605
hex#660605
rgbrgb(102, 6, 5)
hslhsl(1, 91%, 21%)
oklchoklch(0.325 0.127 28.6)
Closest name: Blood of Zeus (#640f09)Relative luminance 0.0297

Colors that go with #660605

Teal, Crimson and Steel Blue 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 →

#056566

#660534 · #663705

#056606 · #060566

Split-complementary

Open in tool →

#056637 · #053466

#346605 · #056566 · #370566

Contrast

#660605 as textRatioAAAA largeAAAFix
Aaon white
13.18:1passpasspassPasses AAA — no fix needed.
Aaon black
1.59:1failfailfail
  • AA: use #ea0f0b as the text (4.57:1)
  • AAA: use #f86663 as the text (7.07:1)
  • AA: or shift the background to #999999 (4.63:1)
  • AAA: or shift the background to #bdbdbd (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #660605 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

#660605 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660605
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 #660605 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660605-c4a19c-62cb9a-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