Color

#6778cb

#6778cb
hex#6778cb
rgbrgb(103, 120, 203)
hslhsl(230, 49%, 60%)
oklchoklch(0.597 0.128 273.2)
Closest name: Flood (#6677bb)Relative luminance 0.2063

Colors that go with #6778cb

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 →

#cbba67

#67aacb · #8867cb

#cb6778 · #78cb67

Split-complementary

Open in tool →

#cb8867 · #aacb67

#cb67aa · #cbba67 · #67cb88

Contrast

#6778cb as textRatioAAAA largeAAAFix
Aaon white
4.1:1failpassfail
  • AA: use #5c6ec7 as the text (4.66:1)
  • AAA: use #3c4faf as the text (7.17:1)
  • AA: or shift the background to #121212 (4.57:1)
Aaon black
5.13:1passpassfail
  • AAA: use #8593d5 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6778cb as the background.

Brands using this color

Fonts for this mood

#6778cb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6778cb
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 #6778cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6778cb-9c9ec4-df814e-231f2d-e9eef1?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