Color

#3ddff5

#3ddff5
hex#3ddff5
rgbrgb(61, 223, 245)
hslhsl(187, 90%, 60%)
oklchoklch(0.832 0.131 208.6)
Closest name: Aqua (#0ff0fe)Relative luminance 0.6036

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f5533d

#3df5ae · #3d84f5

#f53ddf · #dff53d

Split-complementary

Open in tool →

#f53d84 · #f5ae3d

#ae3df5 · #f5533d · #84f53d

Contrast

#3ddff5 as textRatioAAAA largeAAAFix
Aaon white
1.61:1failfailfail
  • AA: use #088191 as the text (4.61:1)
  • AAA: use #065f6b as the text (7.35:1)
  • AA: or shift the background to #545454 (4.71:1)
  • AAA: or shift the background to #383838 (7.3:1)
Aaon black
13.07:1passpasspassPasses 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 #3ddff5 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

#3ddff5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ddff5
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 #3ddff5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ddff5-a2b8be-df4e83-1f262d-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