Color

#3c2f9d

#3c2f9d
hex#3c2f9d
rgbrgb(60, 47, 157)
hslhsl(247, 54%, 40%)
oklchoklch(0.395 0.17 280.6)
Closest name: Bluebell (#333399)Relative luminance 0.0543

Colors that go with #3c2f9d

Charcoal, Steel 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 →

#909d2f

#2f599d · #732f9d

#9d3c2f · #2f9d3c

Split-complementary

Open in tool →

#9d732f · #599d2f

#9d2f59 · #909d2f · #2f9d73

Contrast

#3c2f9d as textRatioAAAA largeAAAFix
Aaon white
10.07:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #7266d1 as the text (4.54:1)
  • AAA: use #968ddd as the text (7.15:1)
  • AA: or shift the background to #b0b0b0 (4.64:1)
  • AAA: or shift the background to #d9d9d9 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c2f9d 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

#3c2f9d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c2f9d
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 #3c2f9d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c2f9d-a59cc4-dfaa4e-271f2d-e9ecf1?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