Color

#394f9d

#394f9d
hex#394f9d
rgbrgb(57, 79, 157)
hslhsl(227, 47%, 42%)
oklchoklch(0.453 0.129 268.9)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.089

Colors that go with #394f9d

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9d8839

#39819d · #55399d

#9d394f · #4f9d39

Split-complementary

Open in tool →

#9d5539 · #819d39

#9d3981 · #9d8839 · #399d55

Contrast

#394f9d as textRatioAAAA largeAAAFix
Aaon white
7.56:1passpasspassPasses AAA — no fix needed.
Aaon black
2.78:1failfailfail
  • AA: use #5a71c4 as the text (4.59:1)
  • AAA: use #8394d2 as the text (7.13:1)
  • AA: or shift the background to #c9c9c9 (4.56:1)
  • AAA: or shift the background to #f7f7f7 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #394f9d 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

#394f9d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #394f9d
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 #394f9d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/394f9d-9ca0c4-df7a4e-221f2d-e9eff1?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