Color

#660a52

#660a52
hex#660a52
rgbrgb(102, 10, 82)
hslhsl(313, 82%, 22%)
oklchoklch(0.351 0.143 339.5)
Closest name: Cosmic Explorer (#551155)Relative luminance 0.0365

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0a661e

#4c0a66 · #660a24

#52660a · #0a5266

Split-complementary

Open in tool →

#24660a · #0a664c

#664c0a · #0a661e · #0a2466

Contrast

#660a52 as textRatioAAAA largeAAAFix
Aaon white
12.14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.73:1failfailfail
  • AA: use #d515ac as the text (4.53:1)
  • AAA: use #ef5dcf as the text (7.14:1)
  • AA: or shift the background to #9e9e9e (4.53:1)
  • AAA: or shift the background to #c7c7c7 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #660a52 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

#660a52 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660a52
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 #660a52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660a52-c19fb5-7ecb62-2d1f24-efe9f1?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