Color

#2d4753

#2d4753
hex#2d4753
rgbrgb(45, 71, 83)
hslhsl(199, 30%, 25%)
oklchoklch(0.382 0.038 228.7)
Closest name: Charcoal (#36454f)Relative luminance 0.0569

Colors that go with #2d4753

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 →

#53392d

#2d534c · #2d3453

#532d47 · #47532d

Split-complementary

Open in tool →

#532d34 · #534c2d

#4c2d53 · #53392d · #34532d

Contrast

#2d4753 as textRatioAAAA largeAAAFix
Aaon white
9.82:1passpasspassPasses AAA — no fix needed.
Aaon black
2.14:1failfailfail
  • AA: use #4f7d92 as the text (4.68:1)
  • AAA: use #709db2 as the text (7.15:1)
  • AA: or shift the background to #b0b0b0 (4.53:1)
  • AAA: or shift the background to #dbdbdb (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d4753 as the background.

Brands using this color

Fonts for this mood

#2d4753 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d4753
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 #2d4753 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d4753-9cb3c4-df4e66-1f232d-e9f1f0?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