Color

#338e56

#338e56
hex#338e56
rgbrgb(51, 142, 86)
hslhsl(143, 47%, 38%)
oklchoklch(0.578 0.122 153.1)
Closest name: seagreen (#2e8b57)Relative luminance 0.2072

Colors that go with #338e56

Charcoal, Royal Blue 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 →

#8e336c

#3e8e33 · #338e84

#56338e · #8e5633

Split-complementary

Open in tool →

#84338e · #8e333e

#333e8e · #8e336c · #8e8433

Contrast

#338e56 as textRatioAAAA largeAAAFix
Aaon white
4.08:1failpassfail
  • AA: use #2f834f as the text (4.69:1)
  • AAA: use #23613b as the text (7.38:1)
  • AA: or shift the background to #141414 (4.51:1)
Aaon black
5.14:1passpassfail
  • AAA: use #3da966 as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #338e56 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #338e56
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 #338e56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/338e56-a2beb0-c859d4-1f2d2b-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