Color

#660ac2

#660ac2
hex#660ac2
rgbrgb(102, 10, 194)
hslhsl(270, 90%, 40%)
oklchoklch(0.443 0.236 296.2)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0694

Tints & shades

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

Harmonies

Complementary

Open in tool →

#66c20a

#0a0ac2 · #c20ac2

#c2660a · #0ac266

Split-complementary

Open in tool →

#c2c20a · #0ac20a

#c20a0a · #66c20a · #0ac2c2

Contrast

#660ac2 as textRatioAAAA largeAAAFix
Aaon white
8.8:1passpasspassPasses AAA — no fix needed.
Aaon black
2.39:1failfailfail
  • AA: use #9c42f5 as the text (4.51:1)
  • AAA: use #b877f8 as the text (7.03:1)
  • AA: or shift the background to #bababa (4.53:1)
  • AAA: or shift the background to #e6e6e6 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #660ac2 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

#660ac2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #660ac2
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 #660ac2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/660ac2-b59cc4-c9cb62-2c1f2d-eae9f1?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