Color

#40bfaa

#40bfaa
hex#40bfaa
rgbrgb(64, 191, 170)
hslhsl(170, 50%, 50%)
oklchoklch(0.73 0.114 179.7)
Closest name: Emerald Bliss (#4cbdac)Relative luminance 0.4125

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf4055

#40bf6a · #4095bf

#aa40bf · #bfaa40

Split-complementary

Open in tool →

#bf4095 · #bf6a40

#6a40bf · #bf4055 · #95bf40

Contrast

#40bfaa as textRatioAAAA largeAAAFix
Aaon white
2.27:1failfailfail
  • AA: use #2b8274 as the text (4.62:1)
  • AAA: use #216358 as the text (7.02:1)
  • AA: or shift the background to #404040 (4.57:1)
  • AAA: or shift the background to #212121 (7.09:1)
Aaon black
9.25:1passpasspassPasses 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 #40bfaa 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 #40bfaa
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 #40bfaa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40bfaa-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