Color

#0c157e

#0c157e
hex#0c157e
rgbrgb(12, 21, 126)
hslhsl(235, 83%, 27%)
oklchoklch(0.293 0.169 267.2)
Closest name: midnightblue (#191970)Relative luminance 0.0212

Colors that go with #0c157e

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 →

#7e740c

#0c4e7e · #3b0c7e

#7e0c15 · #157e0c

Split-complementary

Open in tool →

#7e3b0c · #4e7e0c

#7e0c4e · #7e740c · #0c7e3b

Contrast

#0c157e as textRatioAAAA largeAAAFix
Aaon white
14.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.42:1failfailfail
  • AA: use #5c68f0 as the text (4.69:1)
  • AAA: use #868ff4 as the text (7.25:1)
  • AA: or shift the background to #8f8f8f (4.56:1)
  • AAA: or shift the background to #b3b3b3 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c157e 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

#0c157e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c157e
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 #0c157e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c157e-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