Color

#15efdd

#15efdd
hex#15efdd
rgbrgb(21, 239, 221)
hslhsl(175, 87%, 51%)
oklchoklch(0.857 0.149 185.1)
Closest name: Frozen Boubble (#00eedd)Relative luminance 0.6711

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef1527

#15ef70 · #1594ef

#dd15ef · #efdd15

Split-complementary

Open in tool →

#ef1594 · #ef7015

#7015ef · #ef1527 · #94ef15

Contrast

#15efdd as textRatioAAAA largeAAAFix
Aaon white
1.46:1failfailfail
  • AA: use #098177 as the text (4.75:1)
  • AAA: use #07645c as the text (7.03:1)
  • AA: or shift the background to #5c5c5c (4.59:1)
  • AAA: or shift the background to #404040 (7.12:1)
Aaon black
14.42:1passpasspassPasses 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 #15efdd as the background.

Brands using this color

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

mcpConnect your agent — build around #15efdd
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 #15efdd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15efdd-a2bdbe-d4599f-1f282d-e9f1ed?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