Color

#688acf

#688acf
hex#688acf
rgbrgb(104, 138, 207)
hslhsl(220, 52%, 61%)
oklchoklch(0.637 0.111 263.6)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2563

Colors that go with #688acf

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 →

#cfad68

#68becf · #7968cf

#cf688a · #8acf68

Split-complementary

Open in tool →

#cf7968 · #becf68

#cf68be · #cfad68 · #68cf79

Contrast

#688acf as textRatioAAAA largeAAAFix
Aaon white
3.43:1failpassfail
  • AA: use #4972c5 as the text (4.67:1)
  • AAA: use #32569f as the text (7.08:1)
  • AA: or shift the background to #242424 (4.53:1)
Aaon black
6.13:1passpassfail
  • AAA: use #7796d4 as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #688acf 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

#688acf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #688acf
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 #688acf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/688acf-9ca5c4-df694e-211f2d-e9f0f1?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