Color

#3fd5d2

#3fd5d2
hex#3fd5d2
rgbrgb(63, 213, 210)
hslhsl(179, 64%, 54%)
oklchoklch(0.796 0.122 193)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.533

Colors that go with #3fd5d2

Charcoal, Light Coral and 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 →

#d53f41

#3fd587 · #3f8cd5

#d23fd5 · #d5d23f

Split-complementary

Open in tool →

#d53f8c · #d5873f

#873fd5 · #d53f41 · #8cd53f

Contrast

#3fd5d2 as textRatioAAAA largeAAAFix
Aaon white
1.8:1failfailfail
  • AA: use #1c8280 as the text (4.61:1)
  • AAA: use #15605f as the text (7.32:1)
  • AA: or shift the background to #4f4f4f (4.55:1)
  • AAA: or shift the background to #333333 (7.02:1)
Aaon black
11.66:1passpasspassPasses 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 #3fd5d2 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 #3fd5d2
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 #3fd5d2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fd5d2-a2bbbe-d45996-1f272d-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