Color

#51ecae

#51ecae
hex#51ecae
rgbrgb(81, 236, 174)
hslhsl(156, 80%, 62%)
oklchoklch(0.846 0.158 162.7)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.648

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ec518f

#51ec60 · #51dcec

#ae51ec · #ecae51

Split-complementary

Open in tool →

#ec51dc · #ec6051

#6051ec · #ec518f · #dcec51

Contrast

#51ecae as textRatioAAAA largeAAAFix
Aaon white
1.5:1failfailfail
  • AA: use #0f8556 as the text (4.66:1)
  • AAA: use #0b6541 as the text (7.11:1)
  • AA: or shift the background to #595959 (4.66:1)
  • AAA: or shift the background to #3d3d3d (7.22:1)
Aaon black
13.96:1passpasspassPasses 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 #51ecae 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 #51ecae
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 #51ecae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51ecae-a2beb6-d459c6-1f2d2d-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