Color

#51cdc2

#51cdc2
hex#51cdc2
rgbrgb(81, 205, 194)
hslhsl(175, 55%, 56%)
oklchoklch(0.776 0.111 187)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.4931

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cd515b

#51cd85 · #5199cd

#c251cd · #cdc251

Split-complementary

Open in tool →

#cd5199 · #cd8551

#8551cd · #cd515b · #99cd51

Contrast

#51cdc2 as textRatioAAAA largeAAAFix
Aaon white
1.93:1failfailfail
  • AA: use #26827b as the text (4.6:1)
  • AAA: use #1d635d as the text (7.01:1)
  • AA: or shift the background to #4a4a4a (4.58:1)
  • AAA: or shift the background to #2e2e2e (7.02:1)
Aaon black
10.86:1passpasspassPasses 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 #51cdc2 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 #51cdc2
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 #51cdc2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51cdc2-a2bdbe-d4599f-1f282d-e9f1ed?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