Color

#643286

#643286
hex#643286
rgbrgb(100, 50, 134)
hslhsl(276, 46%, 36%)
oklchoklch(0.423 0.139 309.1)
Closest name: Galactic Grapevine (#6b327b)Relative luminance 0.0671

Tints & shades

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

Harmonies

Complementary

Open in tool →

#538632

#3a3286 · #86327e

#866432 · #328664

Split-complementary

Open in tool →

#7e8632 · #32863a

#863a32 · #538632 · #327e86

Contrast

#643286 as textRatioAAAA largeAAAFix
Aaon white
8.97:1passpasspassPasses AAA — no fix needed.
Aaon black
2.34:1failfailfail
  • AA: use #995bc2 as the text (4.63:1)
  • AAA: use #b384d2 as the text (7.15:1)
  • AA: or shift the background to #b8b8b8 (4.52:1)
  • AAA: or shift the background to #e6e6e6 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #643286 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

#643286 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #643286
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 #643286 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/643286-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