Color

#4338bc

#4338bc
hex#4338bc
rgbrgb(67, 56, 188)
hslhsl(245, 54%, 48%)
oklchoklch(0.443 0.197 278.4)
Closest name: Blurple (#5539cc)Relative luminance 0.0765

Colors that go with #4338bc

Charcoal, Sea Green and Steel 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.

Real palettes that use #4338bc

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#b1bc38

#386fbc · #8538bc

#bc4338 · #38bc43

Split-complementary

Open in tool →

#bc8538 · #6fbc38

#bc386f · #b1bc38 · #38bc85

Contrast

#4338bc as textRatioAAAA largeAAAFix
Aaon white
8.3:1passpasspassPasses AAA — no fix needed.
Aaon black
2.53:1failfailfail
  • AA: use #726ad2 as the text (4.71:1)
  • AAA: use #948ddd as the text (7.11:1)
  • AA: or shift the background to #bfbfbf (4.51:1)
  • AAA: or shift the background to #ededed (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4338bc 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

#4338bc reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4338bc
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 #4338bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4338bc-a49cc4-dfa54e-261f2d-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