Color

#274b01

#274b01
hex#274b01
rgbrgb(39, 75, 1)
hslhsl(89, 97%, 15%)
oklchoklch(0.371 0.105 133.7)
Closest name: Treetop Cathedral (#2f4a15)Relative luminance 0.0547

Colors that go with #274b01

Blue, Emerald Green and Sage Green 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 →

#25014b

#4b4a01 · #024b01

#01274b · #4b0127

Split-complementary

Open in tool →

#01024b · #4a014b

#014b4a · #25014b · #4b0102

Contrast

#274b01 as textRatioAAAA largeAAAFix
Aaon white
10.03:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #478802 as the text (4.79:1)
  • AAA: use #5aab03 as the text (7.26:1)
  • AA: or shift the background to #b0b0b0 (4.63:1)
  • AAA: or shift the background to #d9d9d9 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #274b01 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#274b01 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #274b01
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 #274b01 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/274b01-adbea2-4e4edf-212d1f-f1f1e9?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