Color

#045f86

#045f86
hex#045f86
rgbrgb(4, 95, 134)
hslhsl(198, 94%, 27%)
oklchoklch(0.459 0.097 235.7)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.0993

Colors that go with #045f86

Charcoal, Crimson and Royal 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 →

#862b04

#04866c · #041e86

#86045f · #5f8604

Split-complementary

Open in tool →

#86041e · #866c04

#6c0486 · #862b04 · #1e8604

Contrast

#045f86 as textRatioAAAA largeAAAFix
Aaon white
7.03:1passpasspassPasses AAA — no fix needed.
Aaon black
2.99:1failfailfail
  • AA: use #067eb2 as the text (4.63:1)
  • AAA: use #07a1e4 as the text (7.23:1)
  • AA: or shift the background to #cfcfcf (4.51:1)
  • AAA: or shift the background to #ffffff (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 #045f86 as the background.

Brands using this color

Fonts for this mood

#045f86 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #045f86
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 #045f86 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/045f86-9cb3c4-df4e69-1f232d-e9f1f0?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