Color

#39699d

#39699d
hex#39699d
rgbrgb(57, 105, 157)
hslhsl(211, 47%, 42%)
oklchoklch(0.511 0.098 252)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1341

Colors that go with #39699d

Charcoal, Sea Green and Sienna 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 →

#9d6d39

#399c9d · #3a399d

#9d3969 · #699d39

Split-complementary

Open in tool →

#9d3a39 · #9c9d39

#9d399c · #9d6d39 · #399d3a

Contrast

#39699d as textRatioAAAA largeAAAFix
Aaon white
5.7:1passpassfail
  • AAA: use #315a87 as the text (7.14:1)
Aaon black
3.68:1failpassfail
  • AA: use #4178b4 as the text (4.57:1)
  • AAA: use #6d9aca as the text (7.13:1)
  • AA: or shift the background to #e6e6e6 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39699d 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

#39699d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39699d
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 #39699d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39699d-9cabc4-df534e-1f202d-e9f1f1?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