Color

#333547

#333547
hex#333547
rgbrgb(51, 53, 71)
hslhsl(234, 16%, 24%)
oklchoklch(0.335 0.032 279.6)
Closest name: After Midnight (#38393f)Relative luminance 0.037

Colors that go with #333547

Dark Olive Green, Sienna 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 →

#474533

#333f47 · #3b3347

#473335 · #354733

Split-complementary

Open in tool →

#473b33 · #3f4733

#47333f · #474533 · #33473b

Contrast

#333547 as textRatioAAAA largeAAAFix
Aaon white
12.06:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #6e7296 as the text (4.51:1)
  • AAA: use #9295b0 as the text (7.15:1)
  • AA: or shift the background to #9e9e9e (4.5:1)
  • AAA: or shift the background to #c7c7c7 (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 #333547 as the background.

Brands using this color

Fonts for this mood

#333547 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #333547
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 #333547 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/333547-9d9cc4-df8a4e-241f2d-e9eef1?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