Color

#055fb3

#055fb3
hex#055fb3
rgbrgb(5, 95, 179)
hslhsl(209, 95%, 36%)
oklchoklch(0.488 0.152 253.9)
Closest name: Denim (#1560bd)Relative luminance 0.1147

Colors that go with #055fb3

Charcoal, Crimson and Sienna 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 →

#b35905

#05b3b0 · #0507b3

#b3055f · #5fb305

Split-complementary

Open in tool →

#b30507 · #b3b005

#b005b3 · #b35905 · #07b305

Contrast

#055fb3 as textRatioAAAA largeAAAFix
Aaon white
6.37:1passpassfail
  • AAA: use #0457a4 as the text (7.23:1)
Aaon black
3.29:1failpassfail
  • AA: use #0674db as the text (4.53:1)
  • AAA: use #339afa as the text (7.14:1)
  • AA: or shift the background to #d9d9d9 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #055fb3 as the background.

Brands using this color

Fonts for this mood

#055fb3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #055fb3
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 #055fb3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/055fb3-9cacc4-df4e4e-1f212d-e9f1f1?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