Color

#02235e

#02235e
hex#02235e
rgbrgb(2, 35, 94)
hslhsl(218, 96%, 19%)
oklchoklch(0.278 0.112 260.7)
Closest name: Black Sea Night (#052462)Relative luminance 0.0202

Colors that go with #02235e

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 →

#5f3d02

#02535f · #0e025f

#5f0224 · #245f02

Split-complementary

Open in tool →

#5f0e02 · #535f02

#5f0253 · #5f3d02 · #025f0e

Contrast

#02235e as textRatioAAAA largeAAAFix
Aaon white
14.95:1passpasspassPasses AAA — no fix needed.
Aaon black
1.4:1failfailfail
  • AA: use #196cfa as the text (4.57:1)
  • AAA: use #5a95fc as the text (7.14:1)
  • AA: or shift the background to #8f8f8f (4.62:1)
  • AAA: or shift the background to #b3b3b3 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #02235e as the background.

Brands using this color

Fonts for this mood

#02235e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #02235e
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 #02235e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/02235e-9ca6c4-df644e-201f2d-e9f0f1?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