Color

#3feff8

#3feff8
hex#3feff8
rgbrgb(63, 239, 248)
hslhsl(183, 93%, 61%)
oklchoklch(0.871 0.136 200.2)
Closest name: Aqua (#0ff0fe)Relative luminance 0.6957

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f8483f

#3ff8a5 · #3f92f8

#f83fef · #eff83f

Split-complementary

Open in tool →

#f83f92 · #f8a53f

#a53ff8 · #f8483f · #92f83f

Contrast

#3feff8 as textRatioAAAA largeAAAFix
Aaon white
1.41:1failfailfail
  • AA: use #05838a as the text (4.55:1)
  • AAA: use #046267 as the text (7.12:1)
  • AA: or shift the background to #5e5e5e (4.6:1)
  • AAA: or shift the background to #424242 (7.14:1)
Aaon black
14.91:1passpasspassPasses 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 #3feff8 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

#3feff8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3feff8
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 #3feff8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3feff8-a2b9be-d4598e-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