Color

#30778d

#30778d
hex#30778d
rgbrgb(48, 119, 141)
hslhsl(194, 49%, 37%)
oklchoklch(0.534 0.078 221.6)
Closest name: Calypso (#3d7188)Relative luminance 0.1575

Colors that go with #30778d

Charcoal, Crimson and Sienna 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.

Real palettes that use #30778d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8d4630

#308d74 · #30498d

#8d3077 · #778d30

Split-complementary

Open in tool →

#8d3049 · #8d7430

#74308d · #8d4630 · #498d30

Contrast

#30778d as textRatioAAAA largeAAAFix
Aaon white
5.06:1passpassfail
  • AAA: use #265d6e as the text (7.31:1)
Aaon black
4.15:1failpassfail
  • AA: use #337d94 as the text (4.5:1)
  • AAA: use #41a1be as the text (7.07:1)
  • AA: or shift the background to #f2f2f2 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #30778d 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

#30778d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #30778d
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 #30778d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30778d-9cb6c4-df4e72-1f242d-e9f1ef?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