Color

#42498a

#42498a
hex#42498a
rgbrgb(66, 73, 138)
hslhsl(234, 35%, 40%)
oklchoklch(0.433 0.107 276.4)
Closest name: Blueberry (#464196)Relative luminance 0.0776

Colors that go with #42498a

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 →

#8a8342

#426d8a · #5f428a

#8a4249 · #498a42

Split-complementary

Open in tool →

#8a5f42 · #6d8a42

#8a426d · #8a8342 · #428a5f

Contrast

#42498a as textRatioAAAA largeAAAFix
Aaon white
8.23:1passpasspassPasses AAA — no fix needed.
Aaon black
2.55:1failfailfail
  • AA: use #686fb6 as the text (4.54:1)
  • AAA: use #8d93c8 as the text (7.14:1)
  • AA: or shift the background to #c2c2c2 (4.62:1)
  • AAA: or shift the background to #ededed (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42498a 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

#42498a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42498a
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 #42498a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42498a-9d9cc4-df8a4e-241f2d-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