Color

#02103b

#02103b
hex#02103b
rgbrgb(2, 16, 59)
hslhsl(225, 93%, 12%)
oklchoklch(0.196 0.086 263.4)
Closest name: Infinite Night (#071037)Relative luminance 0.007

Colors that go with #02103b

Blue Violet, Charcoal and Crimson 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 →

#3b2d02

#022d3b · #10023b

#3b0210 · #103b02

Split-complementary

Open in tool →

#3b1002 · #2d3b02

#3b022d · #3b2d02 · #023b10

Contrast

#02103b as textRatioAAAA largeAAAFix
Aaon white
18.42:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #3a6af8 as the text (4.6:1)
  • AAA: use #7093fa as the text (7.24:1)
  • AA: or shift the background to #808080 (4.66:1)
  • AAA: or shift the background to #a1a1a1 (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 #02103b as the background.

Brands using this color

Fonts for this mood

#02103b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #02103b
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 #02103b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/02103b-9ca1c4-df754e-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