Color

#1542bc

#1542bc
hex#1542bc
rgbrgb(21, 66, 188)
hslhsl(224, 80%, 41%)
oklchoklch(0.438 0.197 264.1)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0769

Colors that go with #1542bc

Charcoal, Steel Blue and Amber 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 →

#bc9015

#1595bc · #3c15bc

#bc1542 · #42bc15

Split-complementary

Open in tool →

#bc3c15 · #95bc15

#bc1595 · #bc9015 · #15bc3c

Contrast

#1542bc as textRatioAAAA largeAAAFix
Aaon white
8.28:1passpasspassPasses AAA — no fix needed.
Aaon black
2.54:1failfailfail
  • AA: use #3e6cea as the text (4.54:1)
  • AAA: use #7192ef as the text (7.06:1)
  • AA: or shift the background to #bfbfbf (4.5:1)
  • AAA: or shift the background to #ededed (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1542bc as the background.

Brands using this color

Fonts for this mood

#1542bc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1542bc
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 #1542bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1542bc-9ca2c4-df724e-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