Color

#0c125a

#0c125a
hex#0c125a
rgbrgb(12, 18, 90)
hslhsl(235, 76%, 20%)
oklchoklch(0.243 0.125 269.3)
Closest name: Interstellar Blue (#001155)Relative luminance 0.0125

Colors that go with #0c125a

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 →

#5a530c

#0c395a · #2d0c5a

#5a0c13 · #135a0c

Split-complementary

Open in tool →

#5a2d0c · #395a0c

#5a0c39 · #5a530c · #0c5a2d

Contrast

#0c125a as textRatioAAAA largeAAAFix
Aaon white
16.8:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #5d69e9 as the text (4.66:1)
  • AAA: use #868fee as the text (7.18:1)
  • AA: or shift the background to #858585 (4.55:1)
  • AAA: or shift the background to #a8a8a8 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c125a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#0c125a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c125a
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 #0c125a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c125a-9e9cc4-df8d4e-241f2d-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