Color

#3dffef

#3dffef
hex#3dffef
rgbrgb(61, 255, 239)
hslhsl(175, 100%, 62%)
oklchoklch(0.905 0.148 186.4)
Closest name: aqua (#00ffff)Relative luminance 0.7874

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ff3d4d

#3dff8e · #3daeff

#ef3dff · #ffef3d

Split-complementary

Open in tool →

#ff3dae · #ff8e3d

#8e3dff · #ff3d4d · #aeff3d

Contrast

#3dffef as textRatioAAAA largeAAAFix
Aaon white
1.25:1failfailfail
  • AA: use #00857a as the text (4.53:1)
  • AAA: use #006159 as the text (7.36:1)
  • AA: or shift the background to #666666 (4.58:1)
  • AAA: or shift the background to #4a4a4a (7.07:1)
Aaon black
16.75:1passpasspassPasses 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 #3dffef 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 #3dffef
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 #3dffef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dffef-a2bdbe-d4599f-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