Color

#337057

#337057
hex#337057
rgbrgb(51, 112, 87)
hslhsl(155, 37%, 32%)
oklchoklch(0.497 0.076 164.4)
Closest name: Greasy Greens (#117755)Relative luminance 0.1298

Colors that go with #337057

Charcoal, Medium Violet Red and Cadet Blue 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 →

#70334d

#337038 · #336b70

#573370 · #705733

Split-complementary

Open in tool →

#70336b · #703833

#383370 · #70334d · #6b7033

Contrast

#337057 as textRatioAAAA largeAAAFix
Aaon white
5.84:1passpassfail
  • AAA: use #2d624c as the text (7.09:1)
Aaon black
3.6:1failpassfail
  • AA: use #3b8164 as the text (4.51:1)
  • AAA: use #4da882 as the text (7.24:1)
  • AA: or shift the background to #e3e3e3 (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 #337057 as the background.

Brands using this color

mcpConnect your agent — build around #337057
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 #337057 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/337057-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