Color

#27404e

#27404e
hex#27404e
rgbrgb(39, 64, 78)
hslhsl(202, 33%, 23%)
oklchoklch(0.357 0.039 234)
Closest name: Cold and Dark (#154250)Relative luminance 0.0465

Colors that go with #27404e

Dark Olive Green, Royal Blue and Teal 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 →

#4e3527

#274e49 · #272c4e

#4e2740 · #404e27

Split-complementary

Open in tool →

#4e272c · #4e4927

#49274e · #4e3527 · #2c4e27

Contrast

#27404e as textRatioAAAA largeAAAFix
Aaon white
10.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.93:1failfailfail
  • AA: use #4b7a95 as the text (4.52:1)
  • AAA: use #6d9bb6 as the text (7.01:1)
  • AA: or shift the background to #a8a8a8 (4.58:1)
  • AAA: or shift the background to #d1d1d1 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #27404e as the background.

Brands using this color

Fonts for this mood

#27404e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #27404e
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 #27404e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/27404e-9cb1c4-df4e5f-1f222d-e9f1f0?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