Color

#3de5eb

#3de5eb
hex#3de5eb
rgbrgb(61, 229, 235)
hslhsl(182, 81%, 58%)
oklchoklch(0.843 0.131 198.6)
Closest name: Aqua (#0ff0fe)Relative luminance 0.6303

Colors that go with #3de5eb

Charcoal, Deep Sky Blue and Light Coral lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #3de5eb

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eb433d

#3deb9a · #3d8eeb

#eb3de5 · #e5eb3d

Split-complementary

Open in tool →

#eb3d8e · #eb9a3d

#9a3deb · #eb433d · #8eeb3d

Contrast

#3de5eb as textRatioAAAA largeAAAFix
Aaon white
1.54:1failfailfail
  • AA: use #0e8286 as the text (4.61:1)
  • AAA: use #0b6366 as the text (7.02:1)
  • AA: or shift the background to #595959 (4.54:1)
  • AAA: or shift the background to #3d3d3d (7.04:1)
Aaon black
13.61:1passpasspassPasses 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 #3de5eb as the background.

Brands using this color

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

Fonts for this mood

#3de5eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3de5eb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3de5eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3de5eb-a2babe-d45990-1f272d-e9f1ee?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