Color

#15f4e5

#15f4e5
hex#15f4e5
rgbrgb(21, 244, 229)
hslhsl(176, 91%, 52%)
oklchoklch(0.872 0.15 186.9)
Closest name: Frozen Boubble (#00eedd)Relative luminance 0.7052

Colors that go with #15f4e5

Charcoal, Deep Sky Blue and Taupe lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f41524

#15f476 · #1593f4

#e515f4 · #f4e515

Split-complementary

Open in tool →

#f41593 · #f47615

#7615f4 · #f41524 · #93f415

Contrast

#15f4e5 as textRatioAAAA largeAAAFix
Aaon white
1.39:1failfailfail
  • AA: use #06847b as the text (4.57:1)
  • AAA: use #05615b as the text (7.32:1)
  • AA: or shift the background to #5e5e5e (4.66:1)
  • AAA: or shift the background to #424242 (7.23:1)
Aaon black
15.1:1passpasspassPasses 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 #15f4e5 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 #15f4e5
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #15f4e5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15f4e5-a2bdbe-d4599d-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