Color

#312960

#312960
hex#312960
rgbrgb(49, 41, 96)
hslhsl(249, 40%, 27%)
oklchoklch(0.322 0.094 286.5)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0308

Colors that go with #312960

Dark Olive Green, Sea Green and Steel 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 →

#586029

#293d60 · #4d2960

#603229 · #296032

Split-complementary

Open in tool →

#604d29 · #3d6029

#60293d · #586029 · #29604d

Contrast

#312960 as textRatioAAAA largeAAAFix
Aaon white
12.99:1passpasspassPasses AAA — no fix needed.
Aaon black
1.62:1failfailfail
  • AA: use #7669bf as the text (4.54:1)
  • AAA: use #978dce as the text (7.02:1)
  • AA: or shift the background to #999999 (4.56:1)
  • AAA: or shift the background to #bfbfbf (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #312960 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

#312960 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #312960
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 #312960 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/312960-a79cc4-dfae4e-271f2d-e9ecf1?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