Color

#34576a

#34576a
hex#34576a
rgbrgb(52, 87, 106)
hslhsl(201, 34%, 31%)
oklchoklch(0.438 0.051 233.4)
Closest name: Arctic Nights (#345c61)Relative luminance 0.0859

Colors that go with #34576a

Royal Blue, 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 #34576a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6a4734

#346a62 · #343c6a

#6a3457 · #576a34

Split-complementary

Open in tool →

#6a343c · #6a6234

#62346a · #6a4734 · #3c6a34

Contrast

#34576a as textRatioAAAA largeAAAFix
Aaon white
7.73:1passpasspassPasses AAA — no fix needed.
Aaon black
2.72:1failfailfail
  • AA: use #4a7c96 as the text (4.61:1)
  • AAA: use #6c9db7 as the text (7.14:1)
  • AA: or shift the background to #c7c7c7 (4.57:1)
  • AAA: or shift the background to #f5f5f5 (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 #34576a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #34576a
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 #34576a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/34576a-9cb1c4-df4e62-1f222d-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