Color

#668e39

#668e39
hex#668e39
rgbrgb(102, 142, 57)
hslhsl(88, 43%, 39%)
oklchoklch(0.598 0.123 130.5)
Closest name: Hidden Paradise (#5e8b3d)Relative luminance 0.2247

Colors that go with #668e39

Charcoal, Copper and Crimson 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 →

#61398e

#8e8b39 · #3c8e39

#39668e · #8e3966

Split-complementary

Open in tool →

#393c8e · #8b398e

#398e8b · #61398e · #8e393c

Contrast

#668e39 as textRatioAAAA largeAAAFix
Aaon white
3.82:1failpassfail
  • AA: use #5c8033 as the text (4.57:1)
  • AAA: use #445f26 as the text (7.21:1)
  • AA: or shift the background to #1a1a1a (4.55:1)
Aaon black
5.49:1passpassfail
  • AAA: use #76a441 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #668e39 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 #668e39
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 #668e39 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/668e39-aebea2-4e51df-212d1f-f1f1e9?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