Color

#057cb8

#057cb8
hex#057cb8
rgbrgb(5, 124, 184)
hslhsl(200, 95%, 37%)
oklchoklch(0.56 0.129 240.7)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1791

Colors that go with #057cb8

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 →

#b84005

#05b89a · #0523b8

#b8057c · #7cb805

Split-complementary

Open in tool →

#b80523 · #b89a05

#9a05b8 · #b84005 · #23b805

Contrast

#057cb8 as textRatioAAAA largeAAAFix
Aaon white
4.58:1passpassfail
  • AAA: use #045e8b as the text (7.05:1)
Aaon black
4.58:1passpassfail
  • AAA: use #069eea as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #057cb8 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#057cb8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #057cb8
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 #057cb8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/057cb8-9cb2c4-df4e64-1f232d-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