Color

#18d7ec

#18d7ec
hex#18d7ec
rgbrgb(24, 215, 236)
hslhsl(186, 85%, 51%)
oklchoklch(0.805 0.136 207.5)
Closest name: darkturquoise (#00ced1)Relative luminance 0.5485

Colors that go with #18d7ec

Charcoal, Dodger 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 →

#ec2d18

#18ec97 · #186dec

#ec18d7 · #d7ec18

Split-complementary

Open in tool →

#ec186d · #ec9718

#9718ec · #ec2d18 · #6dec18

Contrast

#18d7ec as textRatioAAAA largeAAAFix
Aaon white
1.75:1failfailfail
  • AA: use #0b818e as the text (4.62:1)
  • AAA: use #085e68 as the text (7.47:1)
  • AA: or shift the background to #4f4f4f (4.67:1)
  • AAA: or shift the background to #333333 (7.2:1)
Aaon black
11.97:1passpasspassPasses 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 #18d7ec as the background.

Brands using this color

Fonts for this mood

#18d7ec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #18d7ec
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 #18d7ec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18d7ec-a2b8be-df4e86-1f262d-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