Color

#03607c

#03607c
hex#03607c
rgbrgb(3, 96, 124)
hslhsl(194, 95%, 25%)
oklchoklch(0.456 0.087 226.6)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.0984

Colors that go with #03607c

Crimson, Royal Blue and 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 →

#7c1f03

#037c5c · #03237c

#7c0360 · #607c03

Split-complementary

Open in tool →

#7c0323 · #7c5c03

#5c037c · #7c1f03 · #237c03

Contrast

#03607c as textRatioAAAA largeAAAFix
Aaon white
7.08:1passpasspassPasses AAA — no fix needed.
Aaon black
2.97:1failfailfail
  • AA: use #047fa4 as the text (4.58:1)
  • AAA: use #05a1d1 as the text (7.03:1)
  • AA: or shift the background to #cfcfcf (4.54:1)
  • AAA: or shift the background to #ffffff (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03607c as the background.

Brands using this color

Fonts for this mood

#03607c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03607c
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 #03607c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03607c-9cb6c4-df4e72-1f242d-e9f1ef?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