Color

#375458

#375458
hex#375458
rgbrgb(55, 84, 88)
hslhsl(187, 23%, 28%)
oklchoklch(0.425 0.035 206.8)
Closest name: All Nighter (#455454)Relative luminance 0.0786

Colors that go with #375458

Teal, 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 #375458

Tints & shades

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

Harmonies

Complementary

Open in tool →

#583b37

#37584b · #374458

#583754 · #545837

Split-complementary

Open in tool →

#583744 · #584b37

#4b3758 · #583b37 · #445837

Contrast

#375458 as textRatioAAAA largeAAAFix
Aaon white
8.17:1passpasspassPasses AAA — no fix needed.
Aaon black
2.57:1failfailfail
  • AA: use #517b81 as the text (4.5:1)
  • AAA: use #6f9ea5 as the text (7.11:1)
  • AA: or shift the background to #c2c2c2 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #375458 as the background.

Brands using this color

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

Fonts for this mood

#375458 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #375458
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 #375458 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/375458-a2b8be-df4e83-1f262d-e9f1ee?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