Color

#5bf83f

#5bf83f
hex#5bf83f
rgbrgb(91, 248, 63)
hslhsl(111, 93%, 61%)
oklchoklch(0.863 0.255 141)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6972

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dc3ff8

#b7f83f · #3ff880

#3f5bf8 · #f83f5b

Split-complementary

Open in tool →

#803ff8 · #f83fb7

#3fb7f8 · #dc3ff8 · #f8803f

Contrast

#5bf83f as textRatioAAAA largeAAAFix
Aaon white
1.41:1failfailfail
  • AA: use #188505 as the text (4.78:1)
  • AAA: use #136704 as the text (7.07:1)
  • AA: or shift the background to #5e5e5e (4.61:1)
  • AAA: or shift the background to #424242 (7.15:1)
Aaon black
14.94:1passpasspassPasses 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 #5bf83f 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 #5bf83f
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 #5bf83f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bf83f-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