Color

#5bf199

#5bf199
hex#5bf199
rgbrgb(91, 241, 153)
hslhsl(145, 84%, 65%)
oklchoklch(0.857 0.178 154.1)
Closest name: Grotesque Green (#64e986)Relative luminance 0.6743

Colors that go with #5bf199

Charcoal, Taupe and Violet 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 →

#f15bb2

#67f15b · #5bf1e4

#995bf1 · #f1995b

Split-complementary

Open in tool →

#e45bf1 · #f15b67

#5b67f1 · #f15bb2 · #f1e45b

Contrast

#5bf199 as textRatioAAAA largeAAAFix
Aaon white
1.45:1failfailfail
  • AA: use #0c8840 as the text (4.55:1)
  • AAA: use #096730 as the text (7.01:1)
  • AA: or shift the background to #5c5c5c (4.61:1)
  • AAA: or shift the background to #404040 (7.15:1)
Aaon black
14.49:1passpasspassPasses 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 #5bf199 as the background.

Brands using this color

mcpConnect your agent — build around #5bf199
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 #5bf199 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bf199-a2beb1-cc59d4-1f2d2b-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