Color

#312145

#312145
hex#312145
rgbrgb(49, 33, 69)
hslhsl(267, 35%, 20%)
oklchoklch(0.286 0.066 303)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0217

Colors that go with #312145

Charcoal, Dark Olive Green and Sea 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 →

#354521

#212345 · #432145

#453121 · #214531

Split-complementary

Open in tool →

#454321 · #234521

#452123 · #354521 · #214543

Contrast

#312145 as textRatioAAAA largeAAAFix
Aaon white
14.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.43:1failfailfail
  • AA: use #8864b4 as the text (4.53:1)
  • AAA: use #a58ac7 as the text (7.06:1)
  • AA: or shift the background to #8f8f8f (4.53:1)
  • AAA: or shift the background to #b5b5b5 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #312145 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

#312145 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #312145
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 #312145 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/312145-b39cc4-dfda4e-2c1f2d-e9eaf1?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