Color

#59fa3d

#59fa3d
hex#59fa3d
rgbrgb(89, 250, 61)
hslhsl(111, 95%, 61%)
oklchoklch(0.867 0.259 141.1)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7083

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#de3dfa

#b8fa3d · #3dfa7f

#3d59fa · #fa3d59

Split-complementary

Open in tool →

#7f3dfa · #fa3db8

#3db8fa · #de3dfa · #fa7f3d

Contrast

#59fa3d as textRatioAAAA largeAAAFix
Aaon white
1.38:1failfailfail
  • AA: use #178603 as the text (4.72:1)
  • AAA: use #116303 as the text (7.47:1)
  • AA: or shift the background to #5e5e5e (4.68:1)
  • AAA: or shift the background to #424242 (7.26:1)
Aaon black
15.17:1passpasspassPasses 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 #59fa3d 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 #59fa3d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #59fa3d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/59fa3d-a3bea2-834edf-1f2d23-eef1e9?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