Color

#40488c

#40488c
hex#40488c
rgbrgb(64, 72, 140)
hslhsl(234, 37%, 40%)
oklchoklch(0.431 0.112 275.6)
Closest name: Blueberry (#464196)Relative luminance 0.0762

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8c8440

#406e8c · #5e408c

#8c4048 · #488c40

Split-complementary

Open in tool →

#8c5e40 · #6e8c40

#8c406e · #8c8440 · #408c5e

Contrast

#40488c as textRatioAAAA largeAAAFix
Aaon white
8.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.52:1failfailfail
  • AA: use #6971ba as the text (4.67:1)
  • AAA: use #8c92ca as the text (7.08:1)
  • AA: or shift the background to #bfbfbf (4.53:1)
  • AAA: or shift the background to #ededed (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 #40488c 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

#40488c reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40488c
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 #40488c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40488c-9d9cc4-df8a4e-241f2d-e9eef1?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