Color

#686af8

#686af8
hex#686af8
rgbrgb(104, 106, 248)
hslhsl(239, 91%, 69%)
oklchoklch(0.601 0.207 277.6)
Closest name: mediumslateblue (#7b68ee)Relative luminance 0.2003

Colors that go with #686af8

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 →

#f8f568

#68b2f8 · #ae68f8

#f8686a · #6af868

Split-complementary

Open in tool →

#f8ae68 · #b2f868

#f868b2 · #f8f568 · #68f8ae

Contrast

#686af8 as textRatioAAAA largeAAAFix
Aaon white
4.2:1failpassfail
  • AA: use #5e61f7 as the text (4.64:1)
  • AAA: use #3236f5 as the text (7.04:1)
  • AA: or shift the background to #0f0f0f (4.57:1)
Aaon black
5.01:1passpassfail
  • AAA: use #8a8cf9 as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #686af8 as the background.

Brands using this color

Fonts for this mood

#686af8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #686af8
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 #686af8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/686af8-a09cc4-df964e-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