Color

#39addb

#39addb
hex#39addb
rgbrgb(57, 173, 219)
hslhsl(197, 69%, 54%)
oklchoklch(0.703 0.121 229)
Closest name: Cousteau (#55a9d6)Relative luminance 0.3587

Tints & shades

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

Harmonies

Complementary

Open in tool →

#db6739

#39dbb8 · #395cdb

#db39ad · #addb39

Split-complementary

Open in tool →

#db395c · #dbb839

#b839db · #db6739 · #5cdb39

Contrast

#39addb as textRatioAAAA largeAAAFix
Aaon white
2.57:1failfailfail
  • AA: use #1e7ea4 as the text (4.59:1)
  • AAA: use #165d79 as the text (7.3:1)
  • AA: or shift the background to #383838 (4.56:1)
  • AAA: or shift the background to #141414 (7.17:1)
Aaon black
8.17:1passpasspassPasses 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 #39addb 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

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

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

tool url/palettes/new/39addb-9cb4c4-df4e6b-1f232d-e9f1ef?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