Color

#2c4e59

#2c4e59
hex#2c4e59
rgbrgb(44, 78, 89)
hslhsl(195, 34%, 26%)
oklchoklch(0.403 0.044 220.8)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0671

Colors that go with #2c4e59

Steel Blue, Teal and Sienna 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 →

#59372c

#2c594e · #2c3759

#592c4e · #4e592c

Split-complementary

Open in tool →

#592c37 · #594e2c

#4e2c59 · #59372c · #37592c

Contrast

#2c4e59 as textRatioAAAA largeAAAFix
Aaon white
8.97:1passpasspassPasses AAA — no fix needed.
Aaon black
2.34:1failfailfail
  • AA: use #477d90 as the text (4.6:1)
  • AAA: use #629eb2 as the text (7.05:1)
  • AA: or shift the background to #b8b8b8 (4.52:1)
  • AAA: or shift the background to #e6e6e6 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2c4e59 as the background.

Brands using this color

Fonts for this mood

#2c4e59 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2c4e59
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 #2c4e59 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2c4e59-9cb5c4-df4e70-1f242d-e9f1ef?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