Color

#678e33

#678e33
hex#678e33
rgbrgb(103, 142, 51)
hslhsl(86, 47%, 38%)
oklchoklch(0.598 0.128 129.3)
Closest name: olivedrab (#6b8e23)Relative luminance 0.2247

Colors that go with #678e33

Charcoal, Crimson and Copper 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 →

#5b338e

#8e8833 · #398e33

#33678e · #8e3367

Split-complementary

Open in tool →

#33398e · #88338e

#338e88 · #5b338e · #8e3339

Contrast

#678e33 as textRatioAAAA largeAAAFix
Aaon white
3.82:1failpassfail
  • AA: use #5c7f2e as the text (4.64:1)
  • AAA: use #466123 as the text (7.01:1)
  • AA: or shift the background to #1a1a1a (4.55:1)
Aaon black
5.49:1passpassfail
  • AAA: use #77a53b as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #678e33 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 #678e33
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 #678e33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/678e33-afbea2-4e56df-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