Color

#2f4b83

#2f4b83
hex#2f4b83
rgbrgb(47, 75, 131)
hslhsl(220, 47%, 35%)
oklchoklch(0.42 0.1 262.8)
Closest name: Assassin (#2d4f83)Relative luminance 0.0728

Colors that go with #2f4b83

Sea Green, Blue and Cornflower 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 →

#83672f

#2f7583 · #3d2f83

#832f4b · #4b832f

Split-complementary

Open in tool →

#833d2f · #75832f

#832f75 · #83672f · #2f833d

Contrast

#2f4b83 as textRatioAAAA largeAAAFix
Aaon white
8.55:1passpasspassPasses AAA — no fix needed.
Aaon black
2.46:1failfailfail
  • AA: use #4f74bf as the text (4.58:1)
  • AAA: use #7c98d0 as the text (7.26:1)
  • AA: or shift the background to #bdbdbd (4.55:1)
  • AAA: or shift the background to #ebebeb (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f4b83 as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#2f4b83 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f4b83
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 #2f4b83 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f4b83-9ca5c4-df694e-211f2d-e9f0f1?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