Color

#153b93

#153b93
hex#153b93
rgbrgb(21, 59, 147)
hslhsl(222, 75%, 33%)
oklchoklch(0.386 0.151 263.3)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0539

Colors that go with #153b93

Charcoal, Steel Blue and 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 →

#936d15

#157a93 · #2e1593

#93153b · #3b9315

Split-complementary

Open in tool →

#932e15 · #7a9315

#93157a · #936d15 · #15932e

Contrast

#153b93 as textRatioAAAA largeAAAFix
Aaon white
10.1:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #3f70e4 as the text (4.65:1)
  • AAA: use #7095eb as the text (7.19:1)
  • AA: or shift the background to #adadad (4.5:1)
  • AAA: or shift the background to #d9d9d9 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #153b93 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#153b93 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #153b93
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 #153b93 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/153b93-9ca3c4-df6e4e-211f2d-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