Color

#39a5d0

#39a5d0
hex#39a5d0
rgbrgb(57, 165, 208)
hslhsl(197, 62%, 52%)
oklchoklch(0.679 0.114 228.8)
Closest name: Cousteau (#55a9d6)Relative luminance 0.3233

Colors that go with #39a5d0

Charcoal, Tomato and Bronze lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d06439

#39d0b0 · #395ad0

#d039a5 · #a5d039

Split-complementary

Open in tool →

#d0395a · #d0b039

#b039d0 · #d06439 · #5ad039

Contrast

#39a5d0 as textRatioAAAA largeAAAFix
Aaon white
2.81:1failfailfail
  • AA: use #267ea1 as the text (4.58:1)
  • AAA: use #1c5e78 as the text (7.19:1)
  • AA: or shift the background to #303030 (4.69:1)
  • AAA: or shift the background to #0a0a0a (7.04:1)
Aaon black
7.47:1passpasspassPasses 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 #39a5d0 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

#39a5d0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39a5d0
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #39a5d0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39a5d0-9cb4c4-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