Color

#6999ab

#6999ab
hex#6999ab
rgbrgb(105, 153, 171)
hslhsl(196, 28%, 54%)
oklchoklch(0.655 0.058 223.4)
Closest name: Cavolo Nero (#72939e)Relative luminance 0.2873

Colors that go with #6999ab

Charcoal, Peru and Blush Pink 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.

Real palettes that use #6999ab

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#ab7a69

#69ab9b · #6978ab

#ab6999 · #99ab69

Split-complementary

Open in tool →

#ab6978 · #ab9b69

#9b69ab · #ab7a69 · #78ab69

Contrast

#6999ab as textRatioAAAA largeAAAFix
Aaon white
3.11:1failpassfail
  • AA: use #4f7c8c as the text (4.57:1)
  • AAA: use #3b5c68 as the text (7.2:1)
  • AA: or shift the background to #2b2b2b (4.55:1)
Aaon black
6.75:1passpassfail
  • AAA: use #6f9dae 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 #6999ab as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #6999ab
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 #6999ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6999ab-9cb5c4-df4e6e-1f232d-e9f1ef?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