Color

#337a56

#337a56
hex#337a56
rgbrgb(51, 122, 86)
hslhsl(150, 41%, 34%)
oklchoklch(0.524 0.092 158.7)
Closest name: Amazon (#387b54)Relative luminance 0.1529

Colors that go with #337a56

Charcoal, Crimson 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7a3357

#337a33 · #337a7a

#57337a · #7a5733

Split-complementary

Open in tool →

#7a337a · #7a3333

#33337a · #7a3357 · #7a7a33

Contrast

#337a56 as textRatioAAAA largeAAAFix
Aaon white
5.17:1passpassfail
  • AAA: use #296145 as the text (7.27:1)
Aaon black
4.06:1failpassfail
  • AA: use #38855e as the text (4.68:1)
  • AAA: use #47a978 as the text (7.21:1)
  • 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 #337a56 as the background.

Brands using this color

mcpConnect your agent — build around #337a56
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 #337a56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/337a56-a2beb3-d459d2-1f2d2c-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