Color

#2c374e

#2c374e
hex#2c374e
rgbrgb(44, 55, 78)
hslhsl(221, 28%, 24%)
oklchoklch(0.337 0.043 264.5)
Closest name: Astral Nomad (#203943)Relative luminance 0.0382

Colors that go with #2c374e

Dark Olive Green, Sea Green and Steel 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4e432c

#2c484e · #322c4e

#4e2c37 · #374e2c

Split-complementary

Open in tool →

#4e322c · #484e2c

#4e2c48 · #4e432c · #2c4e32

Contrast

#2c374e as textRatioAAAA largeAAAFix
Aaon white
11.91:1passpasspassPasses AAA — no fix needed.
Aaon black
1.76:1failfailfail
  • AA: use #5f75a5 as the text (4.57:1)
  • AAA: use #8697bb as the text (7.16:1)
  • AA: or shift the background to #a1a1a1 (4.61:1)
  • AAA: or shift the background to #c7c7c7 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2c374e as the background.

Brands using this color

Fonts for this mood

#2c374e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2c374e
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 #2c374e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2c374e-9ca4c4-df6b4e-211f2d-e9eff1?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