Color

#51ecab

#51ecab
hex#51ecab
rgbrgb(81, 236, 171)
hslhsl(155, 80%, 62%)
oklchoklch(0.845 0.16 161.6)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.6468

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ec5191

#51ec5e · #51dfec

#ab51ec · #ecab51

Split-complementary

Open in tool →

#ec51df · #ec5e51

#5d51ec · #ec5191 · #dfec51

Contrast

#51ecab as textRatioAAAA largeAAAFix
Aaon white
1.51:1failfailfail
  • AA: use #0f8554 as the text (4.66:1)
  • AAA: use #0b6540 as the text (7.12:1)
  • AA: or shift the background to #595959 (4.65:1)
  • AAA: or shift the background to #3d3d3d (7.21:1)
Aaon black
13.94:1passpasspassPasses 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 #51ecab 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 #51ecab
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 #51ecab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51ecab-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