Color

#6661ae

#6661ae
hex#6661ae
rgbrgb(102, 97, 174)
hslhsl(244, 32%, 53%)
oklchoklch(0.533 0.118 284.6)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1443

Colors that go with #6661ae

Charcoal, Sea Green and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a8ae61

#6182ae · #8c61ae

#ae6661 · #61ae66

Split-complementary

Open in tool →

#ae8c61 · #82ae61

#ae6182 · #a8ae61 · #61ae8c

Contrast

#6661ae as textRatioAAAA largeAAAFix
Aaon white
5.4:1passpassfail
  • AAA: use #534e97 as the text (7.23:1)
Aaon black
3.89:1failpassfail
  • AA: use #736eb4 as the text (4.62:1)
  • AAA: use #9490c6 as the text (7.06:1)
  • AA: or shift the background to #ebebeb (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6661ae as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #6661ae
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #6661ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6661ae-a39cc4-dfa24e-261f2d-e9edf1?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