Color

#3f2b5a

#3f2b5a
hex#3f2b5a
rgbrgb(63, 43, 90)
hslhsl(266, 35%, 26%)
oklchoklch(0.336 0.082 301.8)
Closest name: Acai (#48295b)Relative luminance 0.0352

Colors that go with #3f2b5a

Dark Olive Green, Sea Green 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 →

#455a2b

#2b2e5a · #562b5a

#5a3f2b · #2b5a3f

Split-complementary

Open in tool →

#5a562b · #2e5a2b

#5a2b2e · #455a2b · #2b5a56

Contrast

#3f2b5a as textRatioAAAA largeAAAFix
Aaon white
12.32:1passpasspassPasses AAA — no fix needed.
Aaon black
1.7:1failfailfail
  • AA: use #8764b4 as the text (4.51:1)
  • AAA: use #a48ac7 as the text (7.04:1)
  • AA: or shift the background to #9e9e9e (4.6:1)
  • AAA: or shift the background to #c4c4c4 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f2b5a 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

#3f2b5a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f2b5a
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 #3f2b5a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f2b5a-b29cc4-dfd74e-2b1f2d-e9eaf1?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