Color

#81deee

#81deee
hex#81deee
rgbrgb(129, 222, 238)
hslhsl(189, 76%, 72%)
oklchoklch(0.849 0.091 209.8)
Closest name: Cold Blue (#88dddd)Relative luminance 0.6308

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ee9281

#81eec8 · #81a7ee

#ee81de · #deee81

Split-complementary

Open in tool →

#ee81a7 · #eec881

#c881ee · #ee9281 · #a7ee81

Contrast

#81deee as textRatioAAAA largeAAAFix
Aaon white
1.54:1failfailfail
  • AA: use #148194 as the text (4.57:1)
  • AAA: use #0f5e6c as the text (7.4:1)
  • AA: or shift the background to #595959 (4.54:1)
  • AAA: or shift the background to #3d3d3d (7.04:1)
Aaon black
13.62:1passpasspassPasses 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 #81deee 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

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

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

tool url/palettes/new/81deee-a2b7be-df4e7e-1f252d-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