Color

#683687

#683687
hex#683687
rgbrgb(104, 54, 135)
hslhsl(277, 43%, 37%)
oklchoklch(0.434 0.135 310.5)
Closest name: Galactic Grapevine (#6b327b)Relative luminance 0.0733

Colors that go with #683687

Charcoal, Tomato and Dark Olive Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#558736

#3f3687 · #87367d

#876836 · #368768

Split-complementary

Open in tool →

#7d8736 · #36873f

#873f36 · #558736 · #367d87

Contrast

#683687 as textRatioAAAA largeAAAFix
Aaon white
8.52:1passpasspassPasses AAA — no fix needed.
Aaon black
2.47:1failfailfail
  • AA: use #985bbe as the text (4.58:1)
  • AAA: use #b183ce as the text (7.01:1)
  • AA: or shift the background to #bdbdbd (4.53:1)
  • AAA: or shift the background to #ebebeb (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #683687 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

#683687 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #683687
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #683687 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/683687-b99cc4-bdcb62-2d1f2c-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