Color

#313463

#313463
hex#313463
rgbrgb(49, 52, 99)
hslhsl(236, 34%, 29%)
oklchoklch(0.347 0.081 278.5)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0401

Colors that go with #313463

Steel Blue, Teal and Dark Olive Green 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 →

#636031

#314d63 · #473163

#633134 · #346331

Split-complementary

Open in tool →

#634731 · #4d6331

#63314d · #636031 · #316347

Contrast

#313463 as textRatioAAAA largeAAAFix
Aaon white
11.65:1passpasspassPasses AAA — no fix needed.
Aaon black
1.8:1failfailfail
  • AA: use #6c71b7 as the text (4.68:1)
  • AAA: use #8e92c7 as the text (7.09:1)
  • AA: or shift the background to #a1a1a1 (4.51:1)
  • AAA: or shift the background to #c9c9c9 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #313463 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

#313463 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #313463
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 #313463 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/313463-9e9cc4-df8f4e-241f2d-e9eef1?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