Color

#39638e

#39638e
hex#39638e
rgbrgb(57, 99, 142)
hslhsl(210, 43%, 39%)
oklchoklch(0.489 0.084 250.4)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1175

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8e6339

#398e8e · #39398e

#8e3963 · #638e39

Split-complementary

Open in tool →

#8e3939 · #8e8e39

#8e398e · #8e6339 · #398e39

Contrast

#39638e as textRatioAAAA largeAAAFix
Aaon white
6.27:1passpassfail
  • AAA: use #335980 as the text (7.29:1)
Aaon black
3.35:1failpassfail
  • AA: use #4478ab as the text (4.52:1)
  • AAA: use #6d99c5 as the text (7.01:1)
  • AA: or shift the background to #dbdbdb (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39638e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#39638e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39638e
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 #39638e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39638e-9cabc4-df514e-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