Color

#40348d

#40348d
hex#40348d
rgbrgb(64, 52, 141)
hslhsl(248, 46%, 38%)
oklchoklch(0.392 0.141 283.9)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0547

Tints & shades

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

Harmonies

Complementary

Open in tool →

#828d34

#34558d · #6d348d

#8d4034 · #348d40

Split-complementary

Open in tool →

#8d6d34 · #558d34

#8d3455 · #828d34 · #348d6d

Contrast

#40348d as textRatioAAAA largeAAAFix
Aaon white
10.03:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #776ac8 as the text (4.68:1)
  • AAA: use #998fd6 as the text (7.25:1)
  • AA: or shift the background to #b0b0b0 (4.62:1)
  • AAA: or shift the background to #d9d9d9 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40348d 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

#40348d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40348d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #40348d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40348d-a69cc4-dfac4e-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