Color

#678ada

#678ada
hex#678ada
rgbrgb(103, 138, 218)
hslhsl(222, 61%, 63%)
oklchoklch(0.643 0.127 265.1)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2612

Colors that go with #678ada

Charcoal, Amber and Blue 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 →

#dab867

#67c3da · #7e67da

#da678a · #8ada67

Split-complementary

Open in tool →

#da7e67 · #c3da67

#da67c3 · #dab867 · #67da7e

Contrast

#678ada as textRatioAAAA largeAAAFix
Aaon white
3.37:1failpassfail
  • AA: use #4670d2 as the text (4.66:1)
  • AAA: use #2b53b1 as the text (7.06:1)
  • AA: or shift the background to #242424 (4.6:1)
Aaon black
6.22:1passpassfail
  • AAA: use #7896de as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #678ada 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

#678ada reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #678ada
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 #678ada and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/678ada-9ca3c4-df6e4e-211f2d-e9eff1?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