Color

#274c53

#274c53
hex#274c53
rgbrgb(39, 76, 83)
hslhsl(190, 36%, 24%)
oklchoklch(0.392 0.044 211.2)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0622

Colors that go with #274c53

Steel Blue, Teal and Rust 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 →

#532f27

#275345 · #273653

#53274c · #4c5327

Split-complementary

Open in tool →

#532736 · #534527

#452753 · #532f27 · #365327

Contrast

#274c53 as textRatioAAAA largeAAAFix
Aaon white
9.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #417e8b as the text (4.58:1)
  • AAA: use #55a0af as the text (7.03:1)
  • AA: or shift the background to #b5b5b5 (4.56:1)
  • AAA: or shift the background to #e0e0e0 (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 #274c53 as the background.

Brands using this color

Fonts for this mood

#274c53 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #274c53
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 #274c53 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/274c53-a2b6be-df4e7c-1f252d-e9f1ef?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