Color

#313069

#313069
hex#313069
rgbrgb(49, 48, 105)
hslhsl(241, 37%, 30%)
oklchoklch(0.343 0.097 280.8)
Closest name: Her Highness (#432e6f)Relative luminance 0.0379

Colors that go with #313069

Steel Blue, Teal 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 →

#686930

#304c69 · #4d3069

#693130 · #306931

Split-complementary

Open in tool →

#694d30 · #4c6930

#69304c · #686930 · #30694d

Contrast

#313069 as textRatioAAAA largeAAAFix
Aaon white
11.95:1passpasspassPasses AAA — no fix needed.
Aaon black
1.76:1failfailfail
  • AA: use #6e6cbc as the text (4.53:1)
  • AAA: use #9493cd as the text (7.31:1)
  • AA: or shift the background to #a1a1a1 (4.63:1)
  • AAA: or shift the background to #c7c7c7 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #313069 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

#313069 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #313069
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 #313069 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/313069-a19cc4-df9b4e-261f2d-e9edf1?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