Color

#660f4b

#660f4b
hex#660f4b
rgbrgb(102, 15, 75)
hslhsl(319, 74%, 23%)
oklchoklch(0.35 0.134 344.2)
Closest name: Cosmic Explorer (#551155)Relative luminance 0.0367

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0f662b

#560f66 · #660f1f

#4b660f · #0f4b66

Split-complementary

Open in tool →

#1f660f · #0f6656

#66560f · #0f662b · #0f1f66

Contrast

#660f4b as textRatioAAAA largeAAAFix
Aaon white
12.1:1passpasspassPasses AAA — no fix needed.
Aaon black
1.73:1failfailfail
  • AA: use #d5209c as the text (4.52:1)
  • AAA: use #e868c0 as the text (7.17:1)
  • AA: or shift the background to #9e9e9e (4.52:1)
  • AAA: or shift the background to #c7c7c7 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #660f4b 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

#660f4b reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660f4b
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 #660f4b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660f4b-c19fb2-74cb62-2d1f23-f0e9f1?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