Color

#02135a

#02135a
hex#02135a
rgbrgb(2, 19, 90)
hslhsl(228, 96%, 18%)
oklchoklch(0.24 0.127 264.5)
Closest name: Interstellar Blue (#001155)Relative luminance 0.0122

Colors that go with #02135a

Charcoal, Crimson 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 →

#5a4802

#02405a · #1c025a

#5a0213 · #135a02

Split-complementary

Open in tool →

#5a1c02 · #405a02

#5a0240 · #5a4802 · #025a1c

Contrast

#02135a as textRatioAAAA largeAAAFix
Aaon white
16.89:1passpasspassPasses AAA — no fix needed.
Aaon black
1.24:1failfailfail
  • AA: use #4166fb as the text (4.52:1)
  • AAA: use #738efc as the text (7:1)
  • AA: or shift the background to #858585 (4.58:1)
  • AAA: or shift the background to #a8a8a8 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #02135a as the background.

Brands using this color

Fonts for this mood

#02135a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #02135a
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 #02135a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/02135a-9c9fc4-df7c4e-231f2d-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