Color

#42529a

#42529a
hex#42529a
rgbrgb(66, 82, 154)
hslhsl(229, 40%, 43%)
oklchoklch(0.463 0.118 271.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0953

Colors that go with #42529a

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 →

#9a8942

#427e9a · #5e429a

#9a4252 · #529a42

Split-complementary

Open in tool →

#9a5e42 · #7e9a42

#9a427e · #9a8942 · #429a5e

Contrast

#42529a as textRatioAAAA largeAAAFix
Aaon white
7.23:1passpasspassPasses AAA — no fix needed.
Aaon black
2.91:1failfailfail
  • AA: use #6272bc as the text (4.65:1)
  • AAA: use #8996cd as the text (7.31:1)
  • AA: or shift the background to #cccccc (4.5:1)
  • AAA: or shift the background to #fcfcfc (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 #42529a 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

#42529a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42529a
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 #42529a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42529a-9c9fc4-df7e4e-231f2d-e9eef1?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