Color

#643dae

#643dae
hex#643dae
rgbrgb(100, 61, 174)
hslhsl(261, 48%, 46%)
oklchoklch(0.468 0.171 294.8)
Closest name: rebeccapurple (#663399)Relative luminance 0.091

Tints & shades

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

Harmonies

Complementary

Open in tool →

#86ae3d

#3d4eae · #9d3dae

#ae643d · #3dae64

Split-complementary

Open in tool →

#ae9d3d · #4eae3d

#ae3d4e · #86ae3d · #3dae9d

Contrast

#643dae as textRatioAAAA largeAAAFix
Aaon white
7.45:1passpasspassPasses AAA — no fix needed.
Aaon black
2.82:1failfailfail
  • AA: use #8764c9 as the text (4.7:1)
  • AAA: use #a58ad6 as the text (7.21:1)
  • AA: or shift the background to #cccccc (4.64:1)
  • AAA: or shift the background to #fafafa (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 #643dae 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

#643dae reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #643dae
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 #643dae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/643dae-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