Color

#3d2880

#3d2880
hex#3d2880
rgbrgb(61, 40, 128)
hslhsl(254, 52%, 33%)
oklchoklch(0.358 0.14 288.1)
Closest name: Galactic Civilization (#442288)Relative luminance 0.0407

Colors that go with #3d2880

Charcoal, Royal Blue and Blue 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 →

#6b8028

#284080 · #692880

#803d28 · #28803d

Split-complementary

Open in tool →

#806928 · #408028

#802840 · #6b8028 · #288069

Contrast

#3d2880 as textRatioAAAA largeAAAFix
Aaon white
11.58:1passpasspassPasses AAA — no fix needed.
Aaon black
1.81:1failfailfail
  • AA: use #7d64ce as the text (4.59:1)
  • AAA: use #9d8bda as the text (7.14:1)
  • AA: or shift the background to #a3a3a3 (4.59:1)
  • AAA: or shift the background to #cccccc (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d2880 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

#3d2880 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d2880
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 #3d2880 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d2880-aa9cc4-dfbb4e-291f2d-e9ebf1?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