Color

#51f0ae

#51f0ae
hex#51f0ae
rgbrgb(81, 240, 174)
hslhsl(155, 84%, 63%)
oklchoklch(0.856 0.163 161.7)
Closest name: Jittery Jade (#77eebb)Relative luminance 0.6713

Colors that go with #51f0ae

Taupe, Hot Pink and Charcoal 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 →

#f05193

#51f05f · #51e3f0

#ae51f0 · #f0ae51

Split-complementary

Open in tool →

#f051e3 · #f05f51

#5f51f0 · #f05193 · #e3f051

Contrast

#51f0ae as textRatioAAAA largeAAAFix
Aaon white
1.46:1failfailfail
  • AA: use #0c8854 as the text (4.5:1)
  • AAA: use #09633d as the text (7.33:1)
  • AA: or shift the background to #5c5c5c (4.59:1)
  • AAA: or shift the background to #404040 (7.12:1)
Aaon black
14.43:1passpasspassPasses 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 #51f0ae 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 #51f0ae
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 #51f0ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51f0ae-a2beb6-d459c8-1f2d2d-e9f1ea?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