Color

#3bb576

#3bb576
hex#3bb576
rgbrgb(59, 181, 118)
hslhsl(149, 51%, 47%)
oklchoklch(0.69 0.143 156.5)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3529

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b53b7a

#3db53b · #3bb5b3

#763bb5 · #b5763b

Split-complementary

Open in tool →

#b33bb5 · #b53b3d

#3b3db5 · #b53b7a · #b5b33b

Contrast

#3bb576 as textRatioAAAA largeAAAFix
Aaon white
2.61:1failfailfail
  • AA: use #2a8355 as the text (4.69:1)
  • AAA: use #206441 as the text (7.09:1)
  • AA: or shift the background to #363636 (4.64:1)
  • AAA: or shift the background to #141414 (7.07:1)
Aaon black
8.06:1passpasspassPasses 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 #3bb576 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #3bb576
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 #3bb576 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bb576-a2beb3-d459d4-1f2d2c-e9f1e9?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