Color

#2f355b

#2f355b
hex#2f355b
rgbrgb(47, 53, 91)
hslhsl(232, 32%, 27%)
oklchoklch(0.343 0.067 275.5)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0391

Colors that go with #2f355b

Dark Olive Green, Sea Green and Steel 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 →

#5b552f

#2f4b5b · #3f2f5b

#5b2f35 · #355b2f

Split-complementary

Open in tool →

#5b3f2f · #4b5b2f

#5b2f4b · #5b552f · #2f5b3f

Contrast

#2f355b as textRatioAAAA largeAAAFix
Aaon white
11.79:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #6871b1 as the text (4.59:1)
  • AAA: use #8d94c4 as the text (7.17:1)
  • AA: or shift the background to #a1a1a1 (4.56:1)
  • AAA: or shift the background to #c9c9c9 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f355b 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

#2f355b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f355b
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 #2f355b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f355b-9c9dc4-df864e-231f2d-e9eef1?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