Color

#661dbf

#661dbf
hex#661dbf
rgbrgb(102, 29, 191)
hslhsl(267, 74%, 43%)
oklchoklch(0.45 0.223 295.9)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0747

Tints & shades

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

Harmonies

Complementary

Open in tool →

#76bf1d

#1d25bf · #b71dbf

#bf661d · #1dbf66

Split-complementary

Open in tool →

#bfb71d · #25bf1d

#bf1d25 · #76bf1d · #1dbfb7

Contrast

#661dbf as textRatioAAAA largeAAAFix
Aaon white
8.42:1passpasspassPasses AAA — no fix needed.
Aaon black
2.49:1failfailfail
  • AA: use #9452e5 as the text (4.6:1)
  • AAA: use #b07eec as the text (7.04:1)
  • AA: or shift the background to #bfbfbf (4.58:1)
  • AAA: or shift the background to #ebebeb (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #661dbf 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

#661dbf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #661dbf
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 #661dbf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/661dbf-b39cc4-dfda4e-2c1f2d-e9eaf1?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