Color

#40568c

#40568c
hex#40568c
rgbrgb(64, 86, 140)
hslhsl(223, 37%, 40%)
oklchoklch(0.461 0.092 266.1)
Closest name: Dusk (#4e5481)Relative luminance 0.0964

Colors that go with #40568c

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.

Real palettes that use #40568c

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8c7640

#407b8c · #51408c

#8c4056 · #568c40

Split-complementary

Open in tool →

#8c5140 · #7b8c40

#8c407b · #8c7640 · #408c51

Contrast

#40568c as textRatioAAAA largeAAAFix
Aaon white
7.17:1passpasspassPasses AAA — no fix needed.
Aaon black
2.93:1failfailfail
  • AA: use #5b74b3 as the text (4.59:1)
  • AAA: use #8597c7 as the text (7.25:1)
  • AA: or shift the background to #cfcfcf (4.6:1)
  • AAA: or shift the background to #ffffff (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40568c 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

#40568c reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40568c
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 #40568c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40568c-9ca3c4-df704e-211f2d-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