Color

#66055d

#66055d
hex#66055d
rgbrgb(102, 5, 93)
hslhsl(306, 91%, 21%)
oklchoklch(0.355 0.154 333)
Closest name: Cosmic Explorer (#551155)Relative luminance 0.0372

Tints & shades

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

Harmonies

Complementary

Open in tool →

#05660f

#3f0566 · #66052c

#5d6605 · #055d66

Split-complementary

Open in tool →

#2c6605 · #05663f

#663f05 · #05660f · #052c66

Contrast

#66055d as textRatioAAAA largeAAAFix
Aaon white
12.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #d60ac2 as the text (4.68:1)
  • AAA: use #f74be5 as the text (7.09:1)
  • AA: or shift the background to #a1a1a1 (4.66:1)
  • AAA: or shift the background to #c7c7c7 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #66055d 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

#66055d reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #66055d
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 #66055d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66055d-c19fb9-8acb62-2d1f26-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