Color

#15ddef

#15ddef
hex#15ddef
rgbrgb(21, 221, 239)
hslhsl(185, 87%, 51%)
oklchoklch(0.82 0.138 205.4)
Closest name: Hammam Blue (#65dcd6)Relative luminance 0.581

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef2715

#15ef94 · #1570ef

#ef15dd · #ddef15

Split-complementary

Open in tool →

#ef1570 · #ef9415

#9415ef · #ef2715 · #70ef15

Contrast

#15ddef as textRatioAAAA largeAAAFix
Aaon white
1.66:1failfailfail
  • AA: use #0a808a as the text (4.7:1)
  • AAA: use #076169 as the text (7.18:1)
  • AA: or shift the background to #545454 (4.55:1)
  • AAA: or shift the background to #383838 (7.05:1)
Aaon black
12.62:1passpasspassPasses 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 #15ddef 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

#15ddef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15ddef
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 #15ddef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15ddef-a2b8be-df4e88-1f262d-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