Color

#39745b

#39745b
hex#39745b
rgbrgb(57, 116, 91)
hslhsl(155, 34%, 34%)
oklchoklch(0.512 0.074 164)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1412

Colors that go with #39745b

Charcoal, Medium Violet Red and Champagne 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 →

#743952

#39743e · #396f74

#5c3974 · #745c39

Split-complementary

Open in tool →

#74396f · #743e39

#3e3974 · #743952 · #6f7439

Contrast

#39745b as textRatioAAAA largeAAAFix
Aaon white
5.49:1passpassfail
  • AAA: use #2f604b as the text (7.25:1)
Aaon black
3.82:1failpassfail
  • AA: use #408266 as the text (4.6:1)
  • AAA: use #52a784 as the text (7.22:1)
  • AA: or shift the background to #ebebeb (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39745b as the background.

Brands using this color

mcpConnect your agent — build around #39745b
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 #39745b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39745b-a2beb6-d459c8-1f2d2d-e9f1ea?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