Color

#3bb5ad

#3bb5ad
hex#3bb5ad
rgbrgb(59, 181, 173)
hslhsl(176, 51%, 47%)
oklchoklch(0.705 0.106 188.7)
Closest name: lightseagreen (#20b2aa)Relative luminance 0.3699

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b53b43

#3bb570 · #3b80b5

#ad3bb5 · #b5ad3b

Split-complementary

Open in tool →

#b53b80 · #b5703b

#703bb5 · #b53b43 · #80b53b

Contrast

#3bb5ad as textRatioAAAA largeAAAFix
Aaon white
2.5:1failfailfail
  • AA: use #2a837d as the text (4.52:1)
  • AAA: use #1f605c as the text (7.28:1)
  • AA: or shift the background to #383838 (4.69:1)
  • AAA: or shift the background to #171717 (7.17:1)
Aaon black
8.4:1passpasspassPasses 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 #3bb5ad 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 #3bb5ad
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 #3bb5ad and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bb5ad-a2bdbe-d4599d-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