Color

#345156

#345156
hex#345156
rgbrgb(52, 81, 86)
hslhsl(189, 25%, 27%)
oklchoklch(0.414 0.036 209.4)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0729

Colors that go with #345156

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.

Real palettes that use #345156

Tints & shades

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

Harmonies

Complementary

Open in tool →

#563934

#34564a · #344056

#563451 · #515634

Split-complementary

Open in tool →

#563440 · #564a34

#4a3456 · #563934 · #405634

Contrast

#345156 as textRatioAAAA largeAAAFix
Aaon white
8.55:1passpasspassPasses AAA — no fix needed.
Aaon black
2.46:1failfailfail
  • AA: use #507e86 as the text (4.67:1)
  • AAA: use #6c9ea7 as the text (7.09:1)
  • AA: or shift the background to #bdbdbd (4.55:1)
  • AAA: or shift the background to #ebebeb (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #345156 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

#345156 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #345156
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 #345156 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/345156-a2b7be-df4e7e-1f252d-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