Color

#30278b

#30278b
hex#30278b
rgbrgb(48, 39, 139)
hslhsl(245, 56%, 35%)
oklchoklch(0.355 0.158 278.7)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0394

Tints & shades

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

Harmonies

Complementary

Open in tool →

#838b27

#27518b · #62278b

#8b3027 · #278b30

Split-complementary

Open in tool →

#8b6227 · #518b27

#8b2751 · #838b27 · #278b62

Contrast

#30278b as textRatioAAAA largeAAAFix
Aaon white
11.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #7168d4 as the text (4.63:1)
  • AAA: use #938cde as the text (7.05:1)
  • AA: or shift the background to #a1a1a1 (4.54:1)
  • AAA: or shift the background to #c9c9c9 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #30278b 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

#30278b reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #30278b
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 #30278b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30278b-a49cc4-dfa54e-261f2d-e9ecf1?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