Color

#2d4558

#2d4558
hex#2d4558
rgbrgb(45, 69, 88)
hslhsl(207, 32%, 26%)
oklchoklch(0.379 0.044 243.2)
Closest name: Charcoal (#36454f)Relative luminance 0.0552

Colors that go with #2d4558

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#58402d

#2d5855 · #2d2f58

#582d44 · #44582d

Split-complementary

Open in tool →

#582d2f · #58552d

#552d58 · #58402d · #2f582d

Contrast

#2d4558 as textRatioAAAA largeAAAFix
Aaon white
9.98:1passpasspassPasses AAA — no fix needed.
Aaon black
2.1:1failfailfail
  • AA: use #50799b as the text (4.55:1)
  • AAA: use #759ab8 as the text (7.07:1)
  • AA: or shift the background to #b0b0b0 (4.6:1)
  • AAA: or shift the background to #d9d9d9 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d4558 as the background.

Brands using this color

Fonts for this mood

#2d4558 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d4558
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 #2d4558 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d4558-9cadc4-df4e53-1f212d-e9f1f1?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