Color

#355f5f

#355f5f
hex#355f5f
rgbrgb(53, 95, 95)
hslhsl(180, 28%, 29%)
oklchoklch(0.455 0.047 195.6)
Closest name: Arctic Nights (#345c61)Relative luminance 0.0977

Colors that go with #355f5f

Blue, Cadet Blue and Champagne 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 #355f5f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5f3535

#355f4a · #354a5f

#5f355f · #5f5f35

Split-complementary

Open in tool →

#5f354a · #5f4a35

#4a355f · #5f3535 · #4a5f35

Contrast

#355f5f as textRatioAAAA largeAAAFix
Aaon white
7.11:1passpasspassPasses AAA — no fix needed.
Aaon black
2.95:1failfailfail
  • AA: use #487f7f as the text (4.62:1)
  • AAA: use #5ca3a3 as the text (7.22:1)
  • AA: or shift the background to #cfcfcf (4.56:1)
  • AAA: or shift the background to #ffffff (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 #355f5f 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

Fonts for this mood

#355f5f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #355f5f
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 #355f5f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/355f5f-a2bbbe-d45994-1f272d-e9f1ed?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