Color

#306eab

#306eab
hex#306eab
rgbrgb(48, 110, 171)
hslhsl(210, 56%, 43%)
oklchoklch(0.527 0.116 250.6)
Closest name: Campanula (#3473b7)Relative luminance 0.1472

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ab6e30

#30abab · #3030ab

#ab306e · #6eab30

Split-complementary

Open in tool →

#ab3030 · #abab30

#ab30ab · #ab6e30 · #30ab30

Contrast

#306eab as textRatioAAAA largeAAAFix
Aaon white
5.32:1passpassfail
  • AAA: use #27598b as the text (7.27:1)
Aaon black
3.94:1failpassfail
  • AA: use #3578bb as the text (4.56:1)
  • AAA: use #649cd3 as the text (7.24:1)
  • AA: or shift the background to #ededed (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #306eab 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

#306eab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #306eab
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 #306eab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/306eab-9cabc4-df514e-1f202d-e9f1f1?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