brandsweets

Color

#337a57

#337a57
hex#337a57
rgbrgb(51, 122, 87)
hslhsl(150, 41%, 34%)
oklchoklch(0.524 0.091 159.3)
Closest name: Amazon (#387b54)Relative luminance 0.1531
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
337a577a3357

#7a3357

Analogous

Open in tool →
337a57337a33337a7a

#337a33 · #337a7a

Triadic

Open in tool →
337a5757337a7a5733

#57337a · #7a5733

Split-complementary

Open in tool →
337a577a337a7a3333

#7a337a · #7a3333

Tetradic

Open in tool →
337a5733337a7a33577a7a33

#33337a · #7a3357 · #7a7a33

Contrast

#337a57 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 #337a57 as the background.

Brands using this color

mcpConnect your agent — build around #337a57
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #337a57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/337a57-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