Color

#643285

#643285
hex#643285
rgbrgb(100, 50, 133)
hslhsl(276, 45%, 36%)
oklchoklch(0.422 0.138 309.5)
Closest name: Galactic Grapevine (#6b327b)Relative luminance 0.0668

Tints & shades

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

Harmonies

Complementary

Open in tool →

#548532

#3b3285 · #85327d

#856432 · #328564

Split-complementary

Open in tool →

#7d8532 · #32853b

#853b32 · #548532 · #327d85

Contrast

#643285 as textRatioAAAA largeAAAFix
Aaon white
8.99:1passpasspassPasses AAA — no fix needed.
Aaon black
2.34:1failfailfail
  • AA: use #9759c0 as the text (4.51:1)
  • AAA: use #b285d1 as the text (7.17:1)
  • AA: or shift the background to #b8b8b8 (4.53:1)
  • AAA: or shift the background to #e3e3e3 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #643285 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

#643285 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #643285
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 #643285 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/643285-b99cc4-bfcb62-2d1f2d-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