Color

#660a00

#660a00
hex#660a00
rgbrgb(102, 10, 0)
hslhsl(6, 100%, 20%)
oklchoklch(0.327 0.125 31.6)
Closest name: Blood of Zeus (#640f09)Relative luminance 0.0304

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#005c66

#660029 · #663d00

#00660a · #0a0066

Split-complementary

Open in tool →

#00663d · #002966

#296600 · #005c66 · #3d0066

Contrast

#660a00 as textRatioAAAA largeAAAFix
Aaon white
13.06:1passpasspassPasses AAA — no fix needed.
Aaon black
1.61:1failfailfail
  • AA: use #eb1700 as the text (4.65:1)
  • AAA: use #ff6352 as the text (7.16:1)
  • AA: or shift the background to #999999 (4.58:1)
  • AAA: or shift the background to #bfbfbf (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #660a00 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

#660a00 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660a00
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #660a00 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660a00-c4a59c-62cba3-2d271f-f1e9ec?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