Color

#5bf55b

#5bf55b
hex#5bf55b
rgbrgb(91, 245, 91)
hslhsl(120, 89%, 66%)
oklchoklch(0.858 0.235 143.2)
Closest name: Experimintal Green (#4cff7b)Relative luminance 0.6828

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f55bf5

#a8f55b · #5bf5a8

#5b5bf5 · #f55b5b

Split-complementary

Open in tool →

#a85bf5 · #f55ba8

#5ba8f5 · #f55bf5 · #f5a85b

Contrast

#5bf55b as textRatioAAAA largeAAAFix
Aaon white
1.43:1failfailfail
  • AA: use #088708 as the text (4.69:1)
  • AAA: use #066506 as the text (7.31:1)
  • AA: or shift the background to #5e5e5e (4.53:1)
  • AAA: or shift the background to #424242 (7.01:1)
Aaon black
14.66:1passpasspassPasses 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 #5bf55b 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 #5bf55b
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 #5bf55b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bf55b-a2bea5-994edf-1f2d25-edf1e9?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