Color

#1534cb

#1534cb
hex#1534cb
rgbrgb(21, 52, 203)
hslhsl(230, 81%, 44%)
oklchoklch(0.43 0.23 265.7)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0693

Colors that go with #1534cb

Charcoal, Sea Green and Steel 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 →

#cbad15

#158ecb · #5215cb

#cb1534 · #34cb15

Split-complementary

Open in tool →

#cb5215 · #8ecb15

#cb158e · #cbad15 · #15cb52

Contrast

#1534cb as textRatioAAAA largeAAAFix
Aaon white
8.8:1passpasspassPasses AAA — no fix needed.
Aaon black
2.39:1failfailfail
  • AA: use #506aed as the text (4.63:1)
  • AAA: use #7e91f1 as the text (7.21:1)
  • AA: or shift the background to #bababa (4.54:1)
  • AAA: or shift the background to #e6e6e6 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1534cb as the background.

Brands using this color

Fonts for this mood

#1534cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1534cb
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 #1534cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1534cb-9c9ec4-df814e-231f2d-e9eef1?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