Color

#660563

#660563
hex#660563
rgbrgb(102, 5, 99)
hslhsl(302, 91%, 21%)
oklchoklch(0.359 0.159 329.8)
Closest name: Cosmic Explorer (#551155)Relative luminance 0.0383

Tints & shades

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

Harmonies

Complementary

Open in tool →

#056608

#390566 · #660532

#636605 · #056366

Split-complementary

Open in tool →

#326605 · #056639

#663905 · #056608 · #053266

Contrast

#660563 as textRatioAAAA largeAAAFix
Aaon white
11.89:1passpasspassPasses AAA — no fix needed.
Aaon black
1.77:1failfailfail
  • AA: use #d10acb as the text (4.62:1)
  • AAA: use #f646f0 as the text (7.05:1)
  • AA: or shift the background to #a1a1a1 (4.6:1)
  • AAA: or shift the background to #c7c7c7 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #660563 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

#660563 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660563
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 #660563 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660563-c19fbc-91cb62-2d1f27-eee9f1?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