Color

#5b9563

#5b9563
hex#5b9563
rgbrgb(91, 149, 99)
hslhsl(128, 24%, 47%)
oklchoklch(0.616 0.097 147.6)
Closest name: Illuminati Green (#419168)Relative luminance 0.2462

Colors that go with #5b9563

Charcoal, Blue 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 →

#955b8d

#70955b · #5b9580

#635b95 · #95635b

Split-complementary

Open in tool →

#805b95 · #955b70

#5b7095 · #955b8d · #95805b

Contrast

#5b9563 as textRatioAAAA largeAAAFix
Aaon white
3.54:1failpassfail
  • AA: use #4f8256 as the text (4.51:1)
  • AAA: use #3a5f3f as the text (7.27:1)
  • AA: or shift the background to #212121 (4.54:1)
Aaon black
5.92:1passpassfail
  • AAA: use #6aa472 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b9563 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 #5b9563
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 #5b9563 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b9563-a2bea9-ac4edf-1f2d27-ecf1e9?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