Color

#686df8

#686df8
hex#686df8
rgbrgb(104, 109, 248)
hslhsl(238, 91%, 69%)
oklchoklch(0.606 0.203 276.9)
Closest name: mediumslateblue (#7b68ee)Relative luminance 0.2066

Colors that go with #686df8

Charcoal, Sea Green and Amber 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 →

#f8f368

#68b5f8 · #ab68f8

#f8686d · #6df868

Split-complementary

Open in tool →

#f8ab68 · #b5f868

#f868b5 · #f8f368 · #68f8ab

Contrast

#686df8 as textRatioAAAA largeAAAFix
Aaon white
4.09:1failpassfail
  • AA: use #5e63f7 as the text (4.56:1)
  • AAA: use #2e34f5 as the text (7.18:1)
  • AA: or shift the background to #141414 (4.5:1)
Aaon black
5.13:1passpassfail
  • AAA: use #8a8ef9 as the text (7.32:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #686df8 as the background.

Brands using this color

Fonts for this mood

#686df8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #686df8
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 #686df8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/686df8-9f9cc4-df944e-251f2d-e9edf1?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