Color

#687bc0

#687bc0
hex#687bc0
rgbrgb(104, 123, 192)
hslhsl(227, 41%, 58%)
oklchoklch(0.598 0.108 271.2)
Closest name: Flood (#6677bb)Relative luminance 0.2091

Colors that go with #687bc0

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 →

#c0ad68

#68a7c0 · #8168c0

#c0687b · #7bc068

Split-complementary

Open in tool →

#c08168 · #a7c068

#c068a7 · #c0ad68 · #68c081

Contrast

#687bc0 as textRatioAAAA largeAAAFix
Aaon white
4.05:1failpassfail
  • AA: use #5d72bb as the text (4.58:1)
  • AAA: use #41549b as the text (7.08:1)
  • AA: or shift the background to #141414 (4.55:1)
Aaon black
5.18:1passpassfail
  • AAA: use #8594cc as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #687bc0 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

#687bc0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #687bc0
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 #687bc0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/687bc0-9ca0c4-df7a4e-221f2d-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