Color

#651bee

#651bee
hex#651bee
rgbrgb(101, 27, 238)
hslhsl(261, 86%, 52%)
oklchoklch(0.494 0.27 286.9)
Closest name: Electric Indigo (#6600ff)Relative luminance 0.0972

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a4ee1b

#1b3bee · #ce1bee

#ee651b · #1bee65

Split-complementary

Open in tool →

#eece1b · #3bee1b

#ee1b3b · #a4ee1b · #1beece

Contrast

#651bee as textRatioAAAA largeAAAFix
Aaon white
7.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.94:1failfailfail
  • AA: use #8c54f2 as the text (4.67:1)
  • AAA: use #a87ff5 as the text (7.02:1)
  • AA: or shift the background to #cfcfcf (4.58:1)
  • AAA: or shift the background to #ffffff (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #651bee 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

#651bee reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #651bee
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 #651bee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/651bee-af9cc4-dfcb4e-2a1f2d-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