Color

#51dbcb

#51dbcb
hex#51dbcb
rgbrgb(81, 219, 203)
hslhsl(173, 66%, 59%)
oklchoklch(0.813 0.121 184.4)
Closest name: turquoise (#40e0d0)Relative luminance 0.5672

Tints & shades

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

Harmonies

Complementary

Open in tool →

#db5162

#51db86 · #51a7db

#cb51db · #dbcb51

Split-complementary

Open in tool →

#db51a7 · #db8651

#8651db · #db5162 · #a7db51

Contrast

#51dbcb as textRatioAAAA largeAAAFix
Aaon white
1.7:1failfailfail
  • AA: use #1b8377 as the text (4.61:1)
  • AAA: use #146158 as the text (7.29:1)
  • AA: or shift the background to #525252 (4.59:1)
  • AAA: or shift the background to #363636 (7.1:1)
Aaon black
12.34:1passpasspassPasses 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 #51dbcb 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 #51dbcb
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 #51dbcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51dbcb-a2bebe-d459a3-1f292d-e9f1ec?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