Color

#274d86

#274d86
hex#274d86
rgbrgb(39, 77, 134)
hslhsl(216, 55%, 34%)
oklchoklch(0.423 0.105 258.4)
Closest name: Assassin (#2d4f83)Relative luminance 0.0746

Colors that go with #274d86

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 →

#866027

#277d86 · #312786

#86274d · #4d8627

Split-complementary

Open in tool →

#863127 · #7d8627

#86277d · #866027 · #278631

Contrast

#274d86 as textRatioAAAA largeAAAFix
Aaon white
8.43:1passpasspassPasses AAA — no fix needed.
Aaon black
2.49:1failfailfail
  • AA: use #3d74c7 as the text (4.52:1)
  • AAA: use #7199d6 as the text (7.23:1)
  • AA: or shift the background to #bfbfbf (4.58:1)
  • AAA: or shift the background to #ebebeb (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #274d86 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

#274d86 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #274d86
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 #274d86 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/274d86-9ca7c4-df5f4e-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