Color

#274d82

#274d82
hex#274d82
rgbrgb(39, 77, 130)
hslhsl(215, 54%, 33%)
oklchoklch(0.42 0.099 257.1)
Closest name: Assassin (#2d4f83)Relative luminance 0.0735

Colors that go with #274d82

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 →

#825c27

#277a82 · #2e2782

#82274d · #4d8227

Split-complementary

Open in tool →

#822e27 · #7a8227

#82277a · #825c27 · #27822e

Contrast

#274d82 as textRatioAAAA largeAAAFix
Aaon white
8.5:1passpasspassPasses AAA — no fix needed.
Aaon black
2.47:1failfailfail
  • AA: use #3f77c6 as the text (4.67:1)
  • AAA: use #6e98d4 as the text (7.1:1)
  • AA: or shift the background to #bdbdbd (4.53:1)
  • AAA: or shift the background to #ebebeb (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #274d82 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

#274d82 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #274d82
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 #274d82 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/274d82-9ca8c4-df5d4e-201f2d-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