Color

#39ddef

#39ddef
hex#39ddef
rgbrgb(57, 221, 239)
hslhsl(186, 85%, 58%)
oklchoklch(0.824 0.13 206.2)
Closest name: Hammam Blue (#65dcd6)Relative luminance 0.5881

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef4b39

#39efa6 · #3982ef

#ef39dd · #ddef39

Split-complementary

Open in tool →

#ef3982 · #efa639

#a639ef · #ef4b39 · #82ef39

Contrast

#39ddef as textRatioAAAA largeAAAFix
Aaon white
1.65:1failfailfail
  • AA: use #0b818e as the text (4.62:1)
  • AAA: use #085e68 as the text (7.47:1)
  • AA: or shift the background to #545454 (4.6:1)
  • AAA: or shift the background to #383838 (7.13:1)
Aaon black
12.76:1passpasspassPasses 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 #39ddef 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

#39ddef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39ddef
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 #39ddef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39ddef-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