Color

#3e678e

#3e678e
hex#3e678e
rgbrgb(62, 103, 142)
hslhsl(209, 39%, 40%)
oklchoklch(0.501 0.078 248.5)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1268

Colors that go with #3e678e

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 →

#8e653e

#3e8e8c · #3e408e

#8e3e67 · #678e3e

Split-complementary

Open in tool →

#8e3e40 · #8e8c3e

#8c3e8e · #8e653e · #408e3e

Contrast

#3e678e as textRatioAAAA largeAAAFix
Aaon white
5.94:1passpassfail
  • AAA: use #365a7c as the text (7.22:1)
Aaon black
3.54:1failpassfail
  • AA: use #4979a7 as the text (4.58:1)
  • AAA: use #719ac1 as the text (7.09:1)
  • AA: or shift the background to #e3e3e3 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e678e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#3e678e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e678e
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 #3e678e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e678e-9cacc4-df4e4e-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