Color

#40757d

#40757d
hex#40757d
rgbrgb(64, 117, 125)
hslhsl(188, 32%, 37%)
oklchoklch(0.529 0.058 208.1)
Closest name: Calypso (#3d7188)Relative luminance 0.1529

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7d4840

#407d66 · #40567d

#7d4074 · #747d40

Split-complementary

Open in tool →

#7d4056 · #7d6640

#66407d · #7d4840 · #567d40

Contrast

#40757d as textRatioAAAA largeAAAFix
Aaon white
5.17:1passpassfail
  • AAA: use #345e65 as the text (7.15:1)
Aaon black
4.06:1failpassfail
  • AA: use #457e87 as the text (4.59:1)
  • AAA: use #5da1ac as the text (7.16:1)
  • AA: or shift the background to #f0f0f0 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40757d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #40757d
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 #40757d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40757d-a2b7be-df4e81-1f252d-e9f1ee?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