Color

#51dbbe

#51dbbe
hex#51dbbe
rgbrgb(81, 219, 190)
hslhsl(167, 66%, 59%)
oklchoklch(0.809 0.126 176.4)
Closest name: turquoise (#40e0d0)Relative luminance 0.5613

Colors that go with #51dbbe

Charcoal, Crimson and Deep Sky Blue 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 →

#db516f

#51db79 · #51b4db

#be51db · #dbbe51

Split-complementary

Open in tool →

#db51b4 · #db7951

#7951db · #db516f · #b4db51

Contrast

#51dbbe as textRatioAAAA largeAAAFix
Aaon white
1.72:1failfailfail
  • AA: use #1b836d as the text (4.65:1)
  • AAA: use #146151 as the text (7.35:1)
  • AA: or shift the background to #525252 (4.55:1)
  • AAA: or shift the background to #363636 (7.04:1)
Aaon black
12.23:1passpasspassPasses 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 #51dbbe 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 #51dbbe
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 #51dbbe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51dbbe-a2bebb-d459af-1f2a2d-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