Color

#660018

#660018
hex#660018
rgbrgb(102, 0, 24)
hslhsl(346, 100%, 20%)
oklchoklch(0.323 0.13 18.4)
Closest name: Merguez (#650021)Relative luminance 0.0289

Tints & shades

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

Harmonies

Complementary

Open in tool →

#00664e

#66004b · #661b00

#186600 · #001866

Split-complementary

Open in tool →

#00661b · #004b66

#4b6600 · #00664e · #1b0066

Contrast

#660018 as textRatioAAAA largeAAAFix
Aaon white
13.31:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #eb0037 as the text (4.59:1)
  • AAA: use #ff5c82 as the text (7.11:1)
  • AA: or shift the background to #999999 (4.67:1)
  • AAA: or shift the background to #bdbdbd (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 #660018 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

#660018 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660018
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 #660018 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660018-c49ca1-62cb80-2d221f-f1e9ef?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