Color

#375d5b

#375d5b
hex#375d5b
rgbrgb(55, 93, 91)
hslhsl(177, 26%, 29%)
oklchoklch(0.449 0.044 191.4)
Closest name: Arctic Nights (#345c61)Relative luminance 0.094

Colors that go with #375d5b

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 #375d5b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5d3739

#375d48 · #374c5d

#5b375d · #5d5b37

Split-complementary

Open in tool →

#5d374c · #5d4837

#48375d · #5d3739 · #4c5d37

Contrast

#375d5b as textRatioAAAA largeAAAFix
Aaon white
7.29:1passpasspassPasses AAA — no fix needed.
Aaon black
2.88:1failfailfail
  • AA: use #4a7d7b as the text (4.51:1)
  • AAA: use #5ea19d as the text (7.06:1)
  • AA: or shift the background to #cccccc (4.54:1)
  • AAA: or shift the background to #fcfcfc (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 #375d5b 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

#375d5b reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #375d5b
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 #375d5b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/375d5b-a2bcbe-d4599b-1f282d-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