Color

#27434e

#27434e
hex#27434e
rgbrgb(39, 67, 78)
hslhsl(197, 33%, 23%)
oklchoklch(0.365 0.039 225)
Closest name: Cold and Dark (#154250)Relative luminance 0.05

Colors that go with #27434e

Dark Olive Green, Steel 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 →

#4e3227

#274e46 · #27304e

#4e2743 · #434e27

Split-complementary

Open in tool →

#4e2730 · #4e4627

#46274e · #4e3227 · #304e27

Contrast

#27434e as textRatioAAAA largeAAAFix
Aaon white
10.5:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #497d92 as the text (4.63:1)
  • AAA: use #669db2 as the text (7.03:1)
  • AA: or shift the background to #ababab (4.57:1)
  • AAA: or shift the background to #d4d4d4 (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 #27434e as the background.

Brands using this color

Fonts for this mood

#27434e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #27434e
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 #27434e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/27434e-9cb4c4-df4e6b-1f232d-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