Color

#274259

#274259
hex#274259
rgbrgb(39, 66, 89)
hslhsl(208, 39%, 25%)
oklchoklch(0.368 0.052 245.5)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0505

Colors that go with #274259

Dark Olive Green, Teal and Sienna 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 →

#593e27

#275957 · #272959

#592741 · #415927

Split-complementary

Open in tool →

#592729 · #595727

#572759 · #593e27 · #295927

Contrast

#274259 as textRatioAAAA largeAAAFix
Aaon white
10.45:1passpasspassPasses AAA — no fix needed.
Aaon black
2.01:1failfailfail
  • AA: use #497ba7 as the text (4.67:1)
  • AAA: use #719cc1 as the text (7.23:1)
  • AA: or shift the background to #ababab (4.55:1)
  • AAA: or shift the background to #d4d4d4 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #274259 as the background.

Brands using this color

Fonts for this mood

#274259 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #274259
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 #274259 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/274259-9cadc4-df4e51-1f212d-e9f1f1?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