Color

#39698e

#39698e
hex#39698e
rgbrgb(57, 105, 142)
hslhsl(206, 43%, 39%)
oklchoklch(0.503 0.079 243.6)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1293

Colors that go with #39698e

Charcoal, Sienna and Amber 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 →

#8e5e39

#398e89 · #393e8e

#8e3969 · #698e39

Split-complementary

Open in tool →

#8e393e · #8e8939

#89398e · #8e5e39 · #3e8e39

Contrast

#39698e as textRatioAAAA largeAAAFix
Aaon white
5.86:1passpassfail
  • AAA: use #315c7c as the text (7.11:1)
Aaon black
3.59:1failpassfail
  • AA: use #437ca8 as the text (4.69:1)
  • AAA: use #699cc3 as the text (7.14:1)
  • AA: or shift the background to #e3e3e3 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39698e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#39698e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39698e
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 #39698e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39698e-9caec4-df4e56-1f212d-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