Color

#40336c

#40336c
hex#40336c
rgbrgb(64, 51, 108)
hslhsl(254, 36%, 31%)
oklchoklch(0.365 0.095 291.5)
Closest name: Her Highness (#432e6f)Relative luminance 0.0454

Colors that go with #40336c

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 →

#5e6c33

#33426c · #5c336c

#6c4033 · #336c40

Split-complementary

Open in tool →

#6c5c33 · #426c33

#6c3342 · #5e6c33 · #336c5c

Contrast

#40336c as textRatioAAAA largeAAAFix
Aaon white
11.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #7c6ab9 as the text (4.62:1)
  • AAA: use #9b8dc9 as the text (7.05:1)
  • AA: or shift the background to #a6a6a6 (4.52:1)
  • AAA: or shift the background to #cfcfcf (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 #40336c 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

#40336c reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40336c
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 #40336c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40336c-aa9cc4-dfbb4e-291f2d-e9ebf1?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