Color

#66005e

#66005e
hex#66005e
rgbrgb(102, 0, 94)
hslhsl(305, 100%, 20%)
oklchoklch(0.353 0.159 332.5)
Closest name: Cosmic Explorer (#551155)Relative luminance 0.0363

Tints & shades

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

Harmonies

Complementary

Open in tool →

#006609

#3b0066 · #66002b

#5e6600 · #005e66

Split-complementary

Open in tool →

#2b6600 · #00663c

#663c00 · #006609 · #002a66

Contrast

#66005e as textRatioAAAA largeAAAFix
Aaon white
12.16:1passpasspassPasses AAA — no fix needed.
Aaon black
1.73:1failfailfail
  • AA: use #d600c4 as the text (4.66:1)
  • AAA: use #ff38ee as the text (7.05:1)
  • AA: or shift the background to #9e9e9e (4.54:1)
  • AAA: or shift the background to #c7c7c7 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #66005e 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

#66005e reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #66005e
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 #66005e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66005e-c19fba-8ccb62-2d1f26-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