Color

#403776

#403776
hex#403776
rgbrgb(64, 55, 118)
hslhsl(249, 36%, 34%)
oklchoklch(0.38 0.104 286.9)
Closest name: Galactic Compass (#48357b)Relative luminance 0.0513

Colors that go with #403776

Steel Blue, Blue and Crimson 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 →

#6d7637

#374d76 · #603776

#764137 · #377641

Split-complementary

Open in tool →

#766037 · #4d7637

#76374d · #6d7637 · #377660

Contrast

#403776 as textRatioAAAA largeAAAFix
Aaon white
10.36:1passpasspassPasses AAA — no fix needed.
Aaon black
2.03:1failfailfail
  • AA: use #766ab9 as the text (4.53:1)
  • AAA: use #9990cb as the text (7.21:1)
  • AA: or shift the background to #ababab (4.51:1)
  • AAA: or shift the background to #d6d6d6 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #403776 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

#403776 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #403776
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 #403776 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/403776-a79cc4-dfae4e-271f2d-e9ecf1?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