Color

#3030bb

#3030bb
hex#3030bb
rgbrgb(48, 48, 187)
hslhsl(240, 59%, 46%)
oklchoklch(0.418 0.209 272.7)
Closest name: Denim (#2243b6)Relative luminance 0.0633

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bbbb30

#3075bb · #7530bb

#bb3030 · #30bb30

Split-complementary

Open in tool →

#bb7530 · #75bb30

#bb3075 · #bbbb30 · #30bb75

Contrast

#3030bb as textRatioAAAA largeAAAFix
Aaon white
9.27:1passpasspassPasses AAA — no fix needed.
Aaon black
2.27:1failfailfail
  • AA: use #6969d8 as the text (4.61:1)
  • AAA: use #8d8de2 as the text (7.04:1)
  • AA: or shift the background to #b5b5b5 (4.52:1)
  • AAA: or shift the background to #e0e0e0 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3030bb 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

#3030bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3030bb
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 #3030bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3030bb-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