Color

#334b4d

#334b4d
hex#334b4d
rgbrgb(51, 75, 77)
hslhsl(185, 20%, 25%)
oklchoklch(0.394 0.03 202.5)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0627

Colors that go with #334b4d

Blue, Blush Pink and Cadet 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 →

#4d3533

#334d42 · #333e4d

#4d334a · #4a4d33

Split-complementary

Open in tool →

#4d333e · #4d4233

#42334d · #4d3533 · #3e4d33

Contrast

#334b4d as textRatioAAAA largeAAAFix
Aaon white
9.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.25:1failfailfail
  • AA: use #567d81 as the text (4.65:1)
  • AAA: use #729da1 as the text (7.05:1)
  • AA: or shift the background to #b5b5b5 (4.54:1)
  • AAA: or shift the background to #e0e0e0 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #334b4d 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

#334b4d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #334b4d
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 #334b4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/334b4d-a2b8be-df4e88-1f262d-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