Color

#18cfdc

#18cfdc
hex#18cfdc
rgbrgb(24, 207, 220)
hslhsl(184, 80%, 48%)
oklchoklch(0.78 0.13 203)
Closest name: darkturquoise (#00ced1)Relative luminance 0.4999

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dc2618

#18dc87 · #186ddc

#dc18cf · #cfdc18

Split-complementary

Open in tool →

#dc186d · #dc8718

#8718dc · #dc2618 · #6ddc18

Contrast

#18cfdc as textRatioAAAA largeAAAFix
Aaon white
1.91:1failfailfail
  • AA: use #0f828a as the text (4.58:1)
  • AAA: use #0b5f65 as the text (7.4:1)
  • AA: or shift the background to #4a4a4a (4.64:1)
  • AAA: or shift the background to #2e2e2e (7.11:1)
Aaon black
11:1passpasspassPasses 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 #18cfdc 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

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

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

tool url/palettes/new/18cfdc-a2b9be-df4e8a-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