Color

#301a47

#301a47
hex#301a47
rgbrgb(48, 26, 71)
hslhsl(269, 46%, 19%)
oklchoklch(0.272 0.082 304)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0182

Colors that go with #301a47

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 →

#31471a

#1a1b47 · #461a47

#47301a · #1a4730

Split-complementary

Open in tool →

#47461a · #1b471a

#471a1b · #31471a · #1a4746

Contrast

#301a47 as textRatioAAAA largeAAAFix
Aaon white
15.39:1passpasspassPasses AAA — no fix needed.
Aaon black
1.36:1failfailfail
  • AA: use #905fc4 as the text (4.62:1)
  • AAA: use #ac88d3 as the text (7.22:1)
  • AA: or shift the background to #8c8c8c (4.58:1)
  • AAA: or shift the background to #b0b0b0 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #301a47 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

#301a47 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #301a47
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 #301a47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/301a47-b49cc4-cbcb62-2c1f2d-e9e9f1?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