Color

#1c034e

#1c034e
hex#1c034e
rgbrgb(28, 3, 78)
hslhsl(260, 93%, 16%)
oklchoklch(0.22 0.121 286.9)
Closest name: Your Darkness (#220044)Relative luminance 0.0086

Colors that go with #1c034e

Royal Blue, Cadet Blue and Cobalt 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 →

#354f03

#03104f · #42034f

#4f1c03 · #034f1c

Split-complementary

Open in tool →

#4f4203 · #104f03

#4f0310 · #354f03 · #034f42

Contrast

#1c034e as textRatioAAAA largeAAAFix
Aaon white
17.91:1passpasspassPasses AAA — no fix needed.
Aaon black
1.17:1failfailfail
  • AA: use #8a53f9 as the text (4.69:1)
  • AAA: use #a87ffa as the text (7.08:1)
  • AA: or shift the background to #808080 (4.54:1)
  • AAA: or shift the background to #a3a3a3 (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 #1c034e as the background.

Brands using this color

Fonts for this mood

#1c034e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c034e
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 #1c034e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c034e-ae9cc4-dfc94e-2a1f2d-e9ebf1?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