Color

#334547

#334547
hex#334547
rgbrgb(51, 69, 71)
hslhsl(186, 16%, 24%)
oklchoklch(0.376 0.023 204.7)
Closest name: Arsenic (#3b444b)Relative luminance 0.0541

Colors that go with #334547

Blue, Blush Pink and Burlywood 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 →

#473533

#33473f · #333b47

#473345 · #454733

Split-complementary

Open in tool →

#47333b · #473f33

#3f3347 · #473533 · #3b4733

Contrast

#334547 as textRatioAAAA largeAAAFix
Aaon white
10.08:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #5c7c7f as the text (4.64:1)
  • AAA: use #7a9b9f as the text (7.02:1)
  • AA: or shift the background to #b0b0b0 (4.65:1)
  • AAA: or shift the background to #d9d9d9 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #334547 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

#334547 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #334547
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 #334547 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/334547-a2b8be-df4e86-1f262d-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