Color

#40677d

#40677d
hex#40677d
rgbrgb(64, 103, 125)
hslhsl(202, 32%, 37%)
oklchoklch(0.494 0.056 234.3)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1227

Colors that go with #40677d

Charcoal, Royal Blue and Sienna 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 →

#7d5640

#407d74 · #40487d

#7d4066 · #667d40

Split-complementary

Open in tool →

#7d4048 · #7d7440

#74407d · #7d5640 · #487d40

Contrast

#40677d as textRatioAAAA largeAAAFix
Aaon white
6.08:1passpassfail
  • AAA: use #395b6f as the text (7.24:1)
Aaon black
3.45:1failpassfail
  • AA: use #4c7a94 as the text (4.52:1)
  • AAA: use #6e9bb4 as the text (7.01:1)
  • AA: or shift the background to #dedede (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40677d 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 #40677d
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 #40677d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40677d-9cb1c4-df4e5f-1f222d-e9f1f0?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