Color

#3dbdb8

#3dbdb8
hex#3dbdb8
rgbrgb(61, 189, 184)
hslhsl(178, 51%, 49%)
oklchoklch(0.729 0.109 191.2)
Closest name: Emerald Bliss (#4cbdac)Relative luminance 0.4085

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bd3d41

#3dbd79 · #3d81bd

#b83dbd · #bdb83d

Split-complementary

Open in tool →

#bd3d81 · #bd793d

#793dbd · #bd3d41 · #81bd3d

Contrast

#3dbdb8 as textRatioAAAA largeAAAFix
Aaon white
2.29:1failfailfail
  • AA: use #2a8380 as the text (4.51:1)
  • AAA: use #1f605e as the text (7.26:1)
  • AA: or shift the background to #404040 (4.53:1)
  • AAA: or shift the background to #212121 (7.03:1)
Aaon black
9.17:1passpasspassPasses 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 #3dbdb8 as the background.

Brands using this color

mcpConnect your agent — build around #3dbdb8
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 #3dbdb8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dbdb8-a2bcbe-d45999-1f282d-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