Color

#59a178

#59a178
hex#59a178
rgbrgb(89, 161, 120)
hslhsl(146, 29%, 49%)
oklchoklch(0.65 0.096 157.4)
Closest name: Cosmic Green (#30a877)Relative luminance 0.2897

Colors that go with #59a178

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 →

#a15982

#5ea159 · #59a19c

#7859a1 · #a17859

Split-complementary

Open in tool →

#9c59a1 · #a1595e

#595ea1 · #a15982 · #a19c59

Contrast

#59a178 as textRatioAAAA largeAAAFix
Aaon white
3.09:1failpassfail
  • AA: use #478060 as the text (4.64:1)
  • AAA: use #355f47 as the text (7.29:1)
  • AA: or shift the background to #2b2b2b (4.58:1)
Aaon black
6.79:1passpassfail
  • AAA: use #5ba47b as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #59a178 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 #59a178
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 #59a178 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/59a178-a2beb1-ce59d4-1f2d2b-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