Color

#18fbf0

#18fbf0
hex#18fbf0
rgbrgb(24, 251, 240)
hslhsl(177, 97%, 54%)
oklchoklch(0.892 0.152 189.1)
Closest name: Arctic Water (#00fcfc)Relative luminance 0.7548

Colors that go with #18fbf0

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 →

#fb1823

#18fb7e · #1895fb

#f018fb · #fbf018

Split-complementary

Open in tool →

#fb1895 · #fb7e18

#7e18fb · #fb1823 · #95fb18

Contrast

#18fbf0 as textRatioAAAA largeAAAFix
Aaon white
1.3:1failfailfail
  • AA: use #02837c as the text (4.63:1)
  • AAA: use #026460 as the text (7.01:1)
  • AA: or shift the background to #636363 (4.6:1)
  • AAA: or shift the background to #474747 (7.12:1)
Aaon black
16.1:1passpasspassPasses 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 #18fbf0 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 #18fbf0
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 #18fbf0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18fbf0-a2bcbe-d4599b-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