Color

#355869

#355869
hex#355869
rgbrgb(53, 88, 105)
hslhsl(200, 33%, 31%)
oklchoklch(0.441 0.049 230.4)
Closest name: Arctic Nights (#345c61)Relative luminance 0.0876

Colors that go with #355869

Steel Blue, Sienna 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.

Real palettes that use #355869

Tints & shades

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

Harmonies

Complementary

Open in tool →

#694635

#356960 · #353e69

#693558 · #586935

Split-complementary

Open in tool →

#69353e · #696035

#603569 · #694635 · #3e6935

Contrast

#355869 as textRatioAAAA largeAAAFix
Aaon white
7.63:1passpasspassPasses AAA — no fix needed.
Aaon black
2.75:1failfailfail
  • AA: use #4b7d95 as the text (4.67:1)
  • AAA: use #6d9db6 as the text (7.15:1)
  • AA: or shift the background to #c7c7c7 (4.52:1)
  • AAA: or shift the background to #f5f5f5 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #355869 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 #355869
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 #355869 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/355869-9cb2c4-df4e64-1f232d-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