Color

#33385b

#33385b
hex#33385b
rgbrgb(51, 56, 91)
hslhsl(233, 28%, 28%)
oklchoklch(0.353 0.061 276.6)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0429

Colors that go with #33385b

Dark Olive Green, Sea Green 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 →

#5b5733

#334c5b · #43335b

#5b3338 · #385b33

Split-complementary

Open in tool →

#5b4333 · #4c5b33

#5b334c · #5b5733 · #335b43

Contrast

#33385b as textRatioAAAA largeAAAFix
Aaon white
11.31:1passpasspassPasses AAA — no fix needed.
Aaon black
1.86:1failfailfail
  • AA: use #6971ab as the text (4.55:1)
  • AAA: use #8d93bf as the text (7.06:1)
  • AA: or shift the background to #a6a6a6 (4.64:1)
  • AAA: or shift the background to #cccccc (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #33385b as the background.

Brands using this color

Fonts for this mood

#33385b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #33385b
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 #33385b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/33385b-9c9cc4-df884e-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