Color

#3bb09a

#3bb09a
hex#3bb09a
rgbrgb(59, 176, 154)
hslhsl(169, 50%, 46%)
oklchoklch(0.686 0.109 177.8)
Closest name: Hole in One (#4aae97)Relative luminance 0.3431

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b03b50

#3bb060 · #3b8bb0

#9a3bb0 · #b09a3b

Split-complementary

Open in tool →

#b03b8b · #b0603b

#603bb0 · #b03b50 · #8bb03b

Contrast

#3bb09a as textRatioAAAA largeAAAFix
Aaon white
2.67:1failfailfail
  • AA: use #2b8272 as the text (4.63:1)
  • AAA: use #216357 as the text (7.03:1)
  • AA: or shift the background to #363636 (4.52:1)
  • AAA: or shift the background to #121212 (7.01:1)
Aaon black
7.86:1passpasspassPasses 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 #3bb09a as the background.

Brands using this color

mcpConnect your agent — build around #3bb09a
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 #3bb09a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bb09a-a2bebc-d459ab-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