Color

#150783

#150783
hex#150783
rgbrgb(21, 7, 131)
hslhsl(247, 90%, 27%)
oklchoklch(0.29 0.182 270.5)
Closest name: darkblue (#00008b)Relative luminance 0.0195

Colors that go with #150783

Charcoal, Steel Blue and Cobalt Blue 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 →

#748307

#073683 · #530783

#831507 · #078315

Split-complementary

Open in tool →

#835307 · #368307

#830736 · #748307 · #078353

Contrast

#150783 as textRatioAAAA largeAAAFix
Aaon white
15.11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.39:1failfailfail
  • AA: use #715ff7 as the text (4.68:1)
  • AAA: use #9386f9 as the text (7.02:1)
  • AA: or shift the background to #8f8f8f (4.67:1)
  • AAA: or shift the background to #b3b3b3 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #150783 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

#150783 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #150783
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 #150783 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/150783-a59cc4-dfaa4e-271f2d-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