Color

#3ffddd

#3ffddd
hex#3ffddd
rgbrgb(63, 253, 221)
hslhsl(170, 98%, 62%)
oklchoklch(0.896 0.152 178.2)
Closest name: aquamarine (#7fffd4)Relative luminance 0.7653

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fd3f5f

#3ffd7e · #3fbefd

#dd3ffd · #fddd3f

Split-complementary

Open in tool →

#fd3fbe · #fd7e3f

#7e3ffd · #fd3f5f · #befd3f

Contrast

#3ffddd as textRatioAAAA largeAAAFix
Aaon white
1.29:1failfailfail
  • AA: use #01836e as the text (4.69:1)
  • AAA: use #016554 as the text (7.02:1)
  • AA: or shift the background to #636363 (4.66:1)
  • AAA: or shift the background to #474747 (7.21:1)
Aaon black
16.31:1passpasspassPasses 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 #3ffddd 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 #3ffddd
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 #3ffddd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ffddd-a2bebd-d459a9-1f292d-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