Color

#457fb5

#457fb5
hex#457fb5
rgbrgb(69, 127, 181)
hslhsl(209, 45%, 49%)
oklchoklch(0.581 0.103 248.5)
Closest name: steelblue (#4682b4)Relative luminance 0.1978

Colors that go with #457fb5

Charcoal, Copper and Amber 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 →

#b57b45

#45b5b3 · #4547b5

#b5457f · #7fb545

Split-complementary

Open in tool →

#b54547 · #b5b345

#b345b5 · #b57b45 · #47b545

Contrast

#457fb5 as textRatioAAAA largeAAAFix
Aaon white
4.24:1failpassfail
  • AA: use #427aae as the text (4.54:1)
  • AAA: use #315b81 as the text (7.13:1)
  • AA: or shift the background to #0f0f0f (4.52:1)
Aaon black
4.96:1passpassfail
  • AAA: use #6b9bc7 as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #457fb5 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#457fb5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #457fb5
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 #457fb5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/457fb5-9cacc4-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