Color

#81e4ea

#81e4ea
hex#81e4ea
rgbrgb(129, 228, 234)
hslhsl(183, 71%, 71%)
oklchoklch(0.861 0.094 200.7)
Closest name: Aqua Fiesta (#96e2e1)Relative luminance 0.6609

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ea8681

#81eaba · #81b0ea

#ea81e4 · #e4ea81

Split-complementary

Open in tool →

#ea81b0 · #eaba81

#ba81ea · #ea8681 · #b0ea81

Contrast

#81e4ea as textRatioAAAA largeAAAFix
Aaon white
1.48:1failfailfail
  • AA: use #178287 as the text (4.59:1)
  • AAA: use #116064 as the text (7.29:1)
  • AA: or shift the background to #5c5c5c (4.53:1)
  • AAA: or shift the background to #404040 (7.02:1)
Aaon black
14.22:1passpasspassPasses 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 #81e4ea 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

#81e4ea reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81e4ea
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 #81e4ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81e4ea-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