Color

#cdefef

#cdefef
hex#cdefef
rgbrgb(205, 239, 239)
hslhsl(180, 52%, 87%)
oklchoklch(0.928 0.035 196.6)
Closest name: Castle in the Sky (#d1eaed)Relative luminance 0.8094

Tints & shades

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

Harmonies

Complementary

Open in tool →

#efcdcd

#cdefde · #cddeef

#efcdef · #efefcd

Split-complementary

Open in tool →

#efcdde · #efdecd

#decdef · #efcdcd · #deefcd

Contrast

#cdefef as textRatioAAAA largeAAAFix
Aaon white
1.22:1failfailfail
  • AA: use #288080 as the text (4.68:1)
  • AAA: use #1f6161 as the text (7.14:1)
  • AA: or shift the background to #666666 (4.7:1)
  • AAA: or shift the background to #4a4a4a (7.25:1)
Aaon black
17.19:1passpasspassPasses 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 #cdefef as the background.

Brands using this color

Fonts for this mood

#cdefef reads as cool, light, clean. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/cdefef-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