Color

#351d53

#351d53
hex#351d53
rgbrgb(53, 29, 83)
hslhsl(267, 48%, 22%)
oklchoklch(0.293 0.095 301.2)
Closest name: Fabric of Space (#341758)Relative luminance 0.0226

Colors that go with #351d53

Charcoal, Dark Olive Green and Royal 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 →

#3b531d

#1d2053 · #501d53

#53351d · #1d5335

Split-complementary

Open in tool →

#53501d · #20531d

#531d20 · #3b531d · #1d5350

Contrast

#351d53 as textRatioAAAA largeAAAFix
Aaon white
14.46:1passpasspassPasses AAA — no fix needed.
Aaon black
1.45:1failfailfail
  • AA: use #8f60c7 as the text (4.67:1)
  • AAA: use #a986d5 as the text (7.06:1)
  • AA: or shift the background to #919191 (4.59:1)
  • AAA: or shift the background to #b5b5b5 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #351d53 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

#351d53 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #351d53
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 #351d53 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/351d53-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