Color

#304591

#304591
hex#304591
rgbrgb(48, 69, 145)
hslhsl(227, 50%, 38%)
oklchoklch(0.417 0.128 268.7)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0693

Tints & shades

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

Harmonies

Complementary

Open in tool →

#917c30

#307691 · #4c3091

#913045 · #459130

Split-complementary

Open in tool →

#914c30 · #769130

#913076 · #917c30 · #30914c

Contrast

#304591 as textRatioAAAA largeAAAFix
Aaon white
8.8:1passpasspassPasses AAA — no fix needed.
Aaon black
2.39:1failfailfail
  • AA: use #576fc7 as the text (4.5:1)
  • AAA: use #8193d5 as the text (7.07:1)
  • AA: or shift the background to #bababa (4.54:1)
  • AAA: or shift the background to #e6e6e6 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #304591 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

#304591 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #304591
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 #304591 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/304591-9ca0c4-df7a4e-221f2d-e9eff1?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