Color

#406fba

#406fba
hex#406fba
rgbrgb(64, 111, 186)
hslhsl(217, 49%, 49%)
oklchoklch(0.545 0.128 259.4)
Closest name: Campanula (#3473b7)Relative luminance 0.16

Colors that go with #406fba

Charcoal, Sea Green and Sienna 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 →

#ba8b40

#40acba · #4e40ba

#ba406f · #6fba40

Split-complementary

Open in tool →

#ba4e40 · #acba40

#ba40ac · #ba8b40 · #40ba4e

Contrast

#406fba as textRatioAAAA largeAAAFix
Aaon white
5:1passpassfail
  • AAA: use #335894 as the text (7.08:1)
Aaon black
4.2:1failpassfail
  • AA: use #4574bf as the text (4.5:1)
  • AAA: use #7699d0 as the text (7.24:1)
  • AA: or shift the background to #f5f5f5 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #406fba as the background.

Brands using this color

Fonts for this mood

#406fba reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #406fba
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 #406fba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/406fba-9ca7c4-df624e-201f2d-e9f0f1?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