Color

#3feeb4

#3feeb4
hex#3feeb4
rgbrgb(63, 238, 180)
hslhsl(160, 84%, 59%)
oklchoklch(0.848 0.162 165.6)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.655

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ee3f79

#3fee5c · #3fd1ee

#b43fee · #eeb43f

Split-complementary

Open in tool →

#ee3fd1 · #ee5c3f

#5c3fee · #ee3f79 · #d1ee3f

Contrast

#3feeb4 as textRatioAAAA largeAAAFix
Aaon white
1.49:1failfailfail
  • AA: use #0b835b as the text (4.76:1)
  • AAA: use #096345 as the text (7.29:1)
  • AA: or shift the background to #595959 (4.7:1)
  • AAA: or shift the background to #3d3d3d (7.29:1)
Aaon black
14.1:1passpasspassPasses 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 #3feeb4 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 #3feeb4
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 #3feeb4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3feeb4-a2beb8-d459be-1f2c2d-e9f1eb?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