Color

#3d2154

#3d2154
hex#3d2154
rgbrgb(61, 33, 84)
hslhsl(273, 44%, 23%)
oklchoklch(0.311 0.092 307.2)
Closest name: Acai (#48295b)Relative luminance 0.0272

Colors that go with #3d2154

Charcoal, Dark Olive Green and Sea 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 →

#385421

#232154 · #542152

#543d21 · #21543d

Split-complementary

Open in tool →

#525421 · #215423

#542321 · #385421 · #215254

Contrast

#3d2154 as textRatioAAAA largeAAAFix
Aaon white
13.6:1passpasspassPasses AAA — no fix needed.
Aaon black
1.54:1failfailfail
  • AA: use #945dc0 as the text (4.59:1)
  • AAA: use #af86d0 as the text (7.14:1)
  • AA: or shift the background to #969696 (4.6:1)
  • AAA: or shift the background to #bababa (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d2154 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

#3d2154 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d2154
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 #3d2154 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d2154-b79cc4-c4cb62-2d1f2d-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