Color

#30366e

#30366e
hex#30366e
rgbrgb(48, 54, 110)
hslhsl(234, 39%, 31%)
oklchoklch(0.359 0.096 275.9)
Closest name: Evening Magic (#363e7d)Relative luminance 0.0439

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6e6830

#30556e · #49306e

#6e3036 · #366e30

Split-complementary

Open in tool →

#6e4930 · #556e30

#6e3055 · #6e6830 · #306e49

Contrast

#30366e as textRatioAAAA largeAAAFix
Aaon white
11.18:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #676fbc as the text (4.58:1)
  • AAA: use #8a91cc as the text (7:1)
  • AA: or shift the background to #a6a6a6 (4.59:1)
  • AAA: or shift the background to #cfcfcf (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #30366e 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

#30366e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #30366e
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 #30366e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30366e-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