Color

#304078

#304078
hex#304078
rgbrgb(48, 64, 120)
hslhsl(227, 43%, 33%)
oklchoklch(0.388 0.097 269.5)
Closest name: Evening Magic (#363e7d)Relative luminance 0.0565

Colors that go with #304078

Steel Blue, Blue and Crimson lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#786930

#306478 · #443078

#783040 · #407830

Split-complementary

Open in tool →

#784430 · #647830

#783064 · #786930 · #307844

Contrast

#304078 as textRatioAAAA largeAAAFix
Aaon white
9.86:1passpasspassPasses AAA — no fix needed.
Aaon black
2.13:1failfailfail
  • AA: use #5b70be as the text (4.51:1)
  • AAA: use #8393ce as the text (7.03:1)
  • AA: or shift the background to #b0b0b0 (4.55:1)
  • AAA: or shift the background to #dbdbdb (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #304078 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

#304078 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #304078
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #304078 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/304078-9ca0c4-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