Color

#3c20bc

#3c20bc
hex#3c20bc
rgbrgb(60, 32, 188)
hslhsl(251, 71%, 43%)
oklchoklch(0.408 0.221 278.4)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0562

Colors that go with #3c20bc

Charcoal, Steel Blue and Cornflower 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 →

#9fbc20

#2051bc · #8a20bc

#bc3c20 · #20bc3c

Split-complementary

Open in tool →

#bc8a20 · #51bc20

#bc2051 · #9fbc20 · #20bc8a

Contrast

#3c20bc as textRatioAAAA largeAAAFix
Aaon white
9.88:1passpasspassPasses AAA — no fix needed.
Aaon black
2.12:1failfailfail
  • AA: use #7a62e4 as the text (4.69:1)
  • AAA: use #9b89eb as the text (7.17:1)
  • AA: or shift the background to #b0b0b0 (4.56:1)
  • AAA: or shift the background to #d9d9d9 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c20bc 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

#3c20bc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c20bc
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 #3c20bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c20bc-a89cc4-dfb34e-281f2d-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