Color

#33308d

#33308d
hex#33308d
rgbrgb(51, 48, 141)
hslhsl(242, 49%, 37%)
oklchoklch(0.375 0.149 277.8)
Closest name: Bluebell (#333399)Relative luminance 0.0474

Tints & shades

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

Harmonies

Complementary

Open in tool →

#898d30

#305b8d · #61308d

#8d3330 · #308d33

Split-complementary

Open in tool →

#8d6130 · #5b8d30

#8d305b · #898d30 · #308d61

Contrast

#33308d as textRatioAAAA largeAAAFix
Aaon white
10.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #6e6bcc as the text (4.64:1)
  • AAA: use #9391d9 as the text (7.29:1)
  • AA: or shift the background to #a8a8a8 (4.53:1)
  • AAA: or shift the background to #d1d1d1 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #33308d 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

#33308d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #33308d
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 #33308d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/33308d-a29cc4-df9e4e-261f2d-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