Color

#337a54

#337a54
hex#337a54
rgbrgb(51, 122, 84)
hslhsl(148, 41%, 34%)
oklchoklch(0.523 0.094 157.3)
Closest name: Amazon (#387b54)Relative luminance 0.1526

Colors that go with #337a54

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 →

#7a3359

#367a33 · #337a78

#54337a · #7a5433

Split-complementary

Open in tool →

#78337a · #7a3336

#33367a · #7a3359 · #7a7833

Contrast

#337a54 as textRatioAAAA largeAAAFix
Aaon white
5.18:1passpassfail
  • AAA: use #296143 as the text (7.28:1)
Aaon black
4.05:1failpassfail
  • AA: use #38855c as the text (4.68:1)
  • AAA: use #47a975 as the text (7.2:1)
  • AA: or shift the background to #f0f0f0 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #337a54 as the background.

Brands using this color

mcpConnect your agent — build around #337a54
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 #337a54 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/337a54-a2beb2-d259d4-1f2d2c-eaf1e9?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