Color

#18dcdc

#18dcdc
hex#18dcdc
rgbrgb(24, 220, 220)
hslhsl(180, 80%, 48%)
oklchoklch(0.811 0.136 194.8)
Closest name: turquoise (#40e0d0)Relative luminance 0.5655

Colors that go with #18dcdc

Charcoal, Deep Sky Blue and Light Coral 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 →

#dc1818

#18dc7a · #187adc

#dc18dc · #dcdc18

Split-complementary

Open in tool →

#dc187a · #dc7a18

#7a18dc · #dc1818 · #7adc18

Contrast

#18dcdc as textRatioAAAA largeAAAFix
Aaon white
1.71:1failfailfail
  • AA: use #0e8181 as the text (4.69:1)
  • AAA: use #0b6060 as the text (7.35:1)
  • AA: or shift the background to #525252 (4.58:1)
  • AAA: or shift the background to #363636 (7.08:1)
Aaon black
12.31:1passpasspassPasses 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 #18dcdc 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

#18dcdc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #18dcdc
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 #18dcdc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18dcdc-a2bbbe-d45994-1f272d-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