Color

#31425e

#31425e
hex#31425e
rgbrgb(49, 66, 94)
hslhsl(217, 31%, 28%)
oklchoklch(0.377 0.053 260.1)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0536

Colors that go with #31425e

Teal, Sienna and Blue 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 →

#5e4d31

#31585e · #36315e

#5e3142 · #425e31

Split-complementary

Open in tool →

#5e3631 · #585e31

#5e3158 · #5e4d31 · #315e36

Contrast

#31425e as textRatioAAAA largeAAAFix
Aaon white
10.14:1passpasspassPasses AAA — no fix needed.
Aaon black
2.07:1failfailfail
  • AA: use #5876a7 as the text (4.56:1)
  • AAA: use #8097bc as the text (7.07:1)
  • AA: or shift the background to #adadad (4.52:1)
  • AAA: or shift the background to #d9d9d9 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31425e as the background.

Brands using this color

Fonts for this mood

#31425e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31425e
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 #31425e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31425e-9ca7c4-df624e-201f2d-e9f0f1?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