Color

#681ea9

#681ea9
hex#681ea9
rgbrgb(104, 30, 169)
hslhsl(272, 70%, 39%)
oklchoklch(0.433 0.201 302.3)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0674

Colors that go with #681ea9

Olive Green, Teal and Sea 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 →

#5fa91e

#221ea9 · #a91ea4

#a9681e · #1ea968

Split-complementary

Open in tool →

#a4a91e · #1ea922

#a9221e · #5fa91e · #1ea4a9

Contrast

#681ea9 as textRatioAAAA largeAAAFix
Aaon white
8.95:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #9b4de0 as the text (4.53:1)
  • AAA: use #b67de8 as the text (7.09:1)
  • AA: or shift the background to #b8b8b8 (4.51:1)
  • AAA: or shift the background to #e6e6e6 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #681ea9 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

#681ea9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #681ea9
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 #681ea9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/681ea9-b69cc4-c5cb62-2d1f2d-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