Color

#6668fa

#6668fa
hex#6668fa
rgbrgb(102, 104, 250)
hslhsl(239, 94%, 69%)
oklchoklch(0.598 0.213 277.2)
Closest name: mediumslateblue (#7b68ee)Relative luminance 0.1963

Colors that go with #6668fa

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 →

#faf866

#66b2fa · #ad66fa

#fa6668 · #68fa66

Split-complementary

Open in tool →

#faad66 · #b2fa66

#fa66b2 · #faf866 · #66faad

Contrast

#6668fa as textRatioAAAA largeAAAFix
Aaon white
4.26:1failpassfail
  • AA: use #5c5efa as the text (4.73:1)
  • AAA: use #2f33f9 as the text (7.09:1)
  • AA: or shift the background to #0d0d0d (4.56:1)
Aaon black
4.93:1passpassfail
  • AAA: use #888afb as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6668fa as the background.

Brands using this color

Fonts for this mood

#6668fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6668fa
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 #6668fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6668fa-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