Color

#333357

#333357
hex#333357
rgbrgb(51, 51, 87)
hslhsl(240, 26%, 27%)
oklchoklch(0.339 0.063 282.5)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0376

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#575733

#334557 · #453357

#573333 · #335733

Split-complementary

Open in tool →

#574533 · #455733

#573345 · #575733 · #335745

Contrast

#333357 as textRatioAAAA largeAAAFix
Aaon white
11.99:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #7272ac as the text (4.72:1)
  • AAA: use #9292bf as the text (7.09:1)
  • AA: or shift the background to #a1a1a1 (4.64:1)
  • AAA: or shift the background to #c7c7c7 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #333357 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

#333357 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #333357
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #333357 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/333357-a19cc4-df994e-251f2d-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