Color

#6c8ea3

#6c8ea3
hex#6c8ea3
rgbrgb(108, 142, 163)
hslhsl(203, 23%, 53%)
oklchoklch(0.629 0.05 235.7)
Closest name: Cavolo Nero (#72939e)Relative luminance 0.2518

Colors that go with #6c8ea3

Charcoal, Copper 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a3816c

#6ca39c · #6c72a3

#a36c8e · #8ea36c

Split-complementary

Open in tool →

#a36c72 · #a39c6c

#9c6ca3 · #a3816c · #72a36c

Contrast

#6c8ea3 as textRatioAAAA largeAAAFix
Aaon white
3.48:1failpassfail
  • AA: use #58798d as the text (4.63:1)
  • AAA: use #435b6b as the text (7.12:1)
  • AA: or shift the background to #212121 (4.63:1)
Aaon black
6.04:1passpassfail
  • AAA: use #7b9aad as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6c8ea3 as the background.

Brands using this color

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

Palettes built around it

mcpConnect your agent — build around #6c8ea3
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 #6c8ea3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6c8ea3-9cb0c4-df4e5d-1f222d-e9f1f0?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