Color

#4245a9

#4245a9
hex#4245a9
rgbrgb(66, 69, 169)
hslhsl(238, 44%, 46%)
oklchoklch(0.448 0.157 276.7)
Closest name: Blueberry (#464196)Relative luminance 0.0828

Colors that go with #4245a9

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 →

#a9a542

#4279a9 · #7242a9

#a94245 · #45a942

Split-complementary

Open in tool →

#a97242 · #79a942

#a94279 · #a9a542 · #42a972

Contrast

#4245a9 as textRatioAAAA largeAAAFix
Aaon white
7.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.66:1failfailfail
  • AA: use #686cc4 as the text (4.53:1)
  • AAA: use #8d8fd3 as the text (7:1)
  • AA: or shift the background to #c4c4c4 (4.53:1)
  • AAA: or shift the background to #f2f2f2 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4245a9 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

#4245a9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4245a9
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 #4245a9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4245a9-9f9cc4-df944e-251f2d-e9edf1?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