Color

#274ba0

#274ba0
hex#274ba0
rgbrgb(39, 75, 160)
hslhsl(222, 61%, 39%)
oklchoklch(0.437 0.144 264)
Closest name: Cascade Twilight (#234893)Relative luminance 0.08

Colors that go with #274ba0

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 →

#a07c27

#2788a0 · #3f27a0

#a0274b · #4ba027

Split-complementary

Open in tool →

#a03f27 · #88a027

#a02788 · #a07c27 · #27a03f

Contrast

#274ba0 as textRatioAAAA largeAAAFix
Aaon white
8.08:1passpasspassPasses AAA — no fix needed.
Aaon black
2.6:1failfailfail
  • AA: use #4670d2 as the text (4.51:1)
  • AAA: use #7896de as the text (7.22:1)
  • AA: or shift the background to #c2c2c2 (4.53:1)
  • AAA: or shift the background to #f0f0f0 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #274ba0 as the background.

Brands using this color

Fonts for this mood

#274ba0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #274ba0
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 #274ba0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/274ba0-9ca3c4-df6e4e-211f2d-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