Color

#39899d

#39899d
hex#39899d
rgbrgb(57, 137, 157)
hslhsl(192, 47%, 42%)
oklchoklch(0.589 0.083 217)
Closest name: Blue Moon (#3992a8)Relative luminance 0.212

Colors that go with #39899d

Charcoal, Copper and Crimson 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.

Real palettes that use #39899d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9d4d39

#399d7f · #39579d

#9d3989 · #899d39

Split-complementary

Open in tool →

#9d3957 · #9d7f39

#7f399d · #9d4d39 · #579d39

Contrast

#39899d as textRatioAAAA largeAAAFix
Aaon white
4.01:1failpassfail
  • AA: use #357f92 as the text (4.56:1)
  • AAA: use #275f6d as the text (7.13:1)
  • AA: or shift the background to #141414 (4.6:1)
Aaon black
5.24:1passpassfail
  • AAA: use #44a3bb as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39899d 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

#39899d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39899d
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 #39899d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39899d-a2b5be-df4e77-1f242d-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