Color

#683597

#683597
hex#683597
rgbrgb(104, 53, 151)
hslhsl(271, 48%, 40%)
oklchoklch(0.444 0.156 304.8)
Closest name: rebeccapurple (#663399)Relative luminance 0.0772

Colors that go with #683597

Tomato, Olive Green and Charcoal 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 →

#649735

#373597 · #973595

#976835 · #359768

Split-complementary

Open in tool →

#959735 · #359737

#973735 · #649735 · #359597

Contrast

#683597 as textRatioAAAA largeAAAFix
Aaon white
8.25:1passpasspassPasses AAA — no fix needed.
Aaon black
2.54:1failfailfail
  • AA: use #935dc6 as the text (4.62:1)
  • AAA: use #af86d5 as the text (7.19:1)
  • AA: or shift the background to #c2c2c2 (4.63:1)
  • AAA: or shift the background to #ededed (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #683597 as the background.

Brands using this color

Fonts for this mood

#683597 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #683597
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 #683597 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/683597-b59cc4-c7cb62-2c1f2d-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