Color

#618b4b

#618b4b
hex#618b4b
rgbrgb(97, 139, 75)
hslhsl(99, 30%, 42%)
oklchoklch(0.59 0.103 135.6)
Closest name: Hidden Paradise (#5e8b3d)Relative luminance 0.2151

Colors that go with #618b4b

Charcoal, Blue and Burlywood 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 →

#754b8b

#828b4b · #4b8b55

#4b618b · #8b4b61

Split-complementary

Open in tool →

#554b8b · #8b4b82

#4b828b · #754b8b · #8b554b

Contrast

#618b4b as textRatioAAAA largeAAAFix
Aaon white
3.96:1failpassfail
  • AA: use #5a8146 as the text (4.5:1)
  • AAA: use #436034 as the text (7.09:1)
  • AA: or shift the background to #171717 (4.53:1)
Aaon black
5.3:1passpassfail
  • AAA: use #72a257 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #618b4b 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 #618b4b
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 #618b4b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/618b4b-a8bea2-664edf-1f2d21-f0f1e9?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