Color

#40877a

#40877a
hex#40877a
rgbrgb(64, 135, 122)
hslhsl(169, 36%, 39%)
oklchoklch(0.574 0.075 179.9)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.1982

Colors that go with #40877a

Charcoal, Copper and Medium Violet Red 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.

Real palettes that use #40877a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#87404d

#408756 · #407187

#7a4087 · #877a40

Split-complementary

Open in tool →

#874071 · #875640

#564087 · #87404d · #718740

Contrast

#40877a as textRatioAAAA largeAAAFix
Aaon white
4.23:1failpassfail
  • AA: use #3c8074 as the text (4.63:1)
  • AAA: use #2e6158 as the text (7.08:1)
  • AA: or shift the background to #0f0f0f (4.53:1)
Aaon black
4.96:1passpassfail
  • AAA: use #4ea696 as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40877a 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 #40877a
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 #40877a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40877a-a2bebc-d459ab-1f2a2d-e9f1ec?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