Color

#3d274e

#3d274e
hex#3d274e
rgbrgb(61, 39, 78)
hslhsl(274, 33%, 23%)
oklchoklch(0.318 0.072 308.9)
Closest name: Acai (#48295b)Relative luminance 0.0299

Colors that go with #3d274e

Dark Olive Green, Sienna 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.

Real palettes that use #3d274e

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#384e27

#2a274e · #4e274b

#4e3d27 · #274e3d

Split-complementary

Open in tool →

#4b4e27 · #274e2a

#4e2a27 · #384e27 · #274b4e

Contrast

#3d274e as textRatioAAAA largeAAAFix
Aaon white
13.14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.6:1failfailfail
  • AA: use #8f63b0 as the text (4.58:1)
  • AAA: use #aa88c3 as the text (7.02:1)
  • AA: or shift the background to #999999 (4.61:1)
  • AAA: or shift the background to #bfbfbf (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d274e 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

#3d274e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d274e
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 #3d274e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d274e-b79cc4-c2cb62-2d1f2d-eae9f1?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