Color

#274bc4

#274bc4
hex#274bc4
rgbrgb(39, 75, 196)
hslhsl(226, 67%, 46%)
oklchoklch(0.468 0.193 266.1)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0945

Colors that go with #274bc4

Charcoal, 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 →

#c49f27

#279ac4 · #5127c4

#c4274b · #4bc427

Split-complementary

Open in tool →

#c45127 · #9ac427

#c4279a · #c49f27 · #27c451

Contrast

#274bc4 as textRatioAAAA largeAAAFix
Aaon white
7.27:1passpasspassPasses AAA — no fix needed.
Aaon black
2.89:1failfailfail
  • AA: use #4c6edc as the text (4.57:1)
  • AAA: use #7b94e5 as the text (7.21:1)
  • AA: or shift the background to #cccccc (4.53:1)
  • AAA: or shift the background to #fcfcfc (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #274bc4 as the background.

Brands using this color

Fonts for this mood

#274bc4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #274bc4
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 #274bc4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/274bc4-9ca1c4-df774e-221f2d-e9eff1?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