Color

#59a173

#59a173
hex#59a173
rgbrgb(89, 161, 115)
hslhsl(142, 29%, 49%)
oklchoklch(0.649 0.101 154.5)
Closest name: Cosmic Green (#30a877)Relative luminance 0.2885

Colors that go with #59a173

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 →

#a15987

#62a159 · #59a198

#7359a1 · #a17359

Split-complementary

Open in tool →

#9859a1 · #a15962

#5962a1 · #a15987 · #a19859

Contrast

#59a173 as textRatioAAAA largeAAAFix
Aaon white
3.1:1failpassfail
  • AA: use #47805c as the text (4.66:1)
  • AAA: use #355f44 as the text (7.31:1)
  • AA: or shift the background to #2b2b2b (4.56:1)
Aaon black
6.77:1passpassfail
  • AAA: use #5ba476 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 #59a173 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 #59a173
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 #59a173 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/59a173-a2beaf-c659d4-1f2d2a-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