Color

#59af18

#59af18
hex#59af18
rgbrgb(89, 175, 24)
hslhsl(94, 76%, 39%)
oklchoklch(0.674 0.192 136)
Closest name: Extra Life (#6ab417)Relative luminance 0.3285

Colors that go with #59af18

Royal Blue, Taupe and Medium Orchid 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 →

#6e18af

#a5af18 · #18af22

#1859af · #af1859

Split-complementary

Open in tool →

#2218af · #af18a5

#18a5af · #6e18af · #af2218

Contrast

#59af18 as textRatioAAAA largeAAAFix
Aaon white
2.77:1failfailfail
  • AA: use #428212 as the text (4.74:1)
  • AAA: use #32630d as the text (7.18:1)
  • AA: or shift the background to #333333 (4.55:1)
  • AAA: or shift the background to #0d0d0d (7.01:1)
Aaon black
7.57:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #59af18 as the background.

Brands using this color

mcpConnect your agent — build around #59af18
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 #59af18 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/59af18-abbea2-5a4edf-1f2d1f-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