Color

#457cd3

#457cd3
hex#457cd3
rgbrgb(69, 124, 211)
hslhsl(217, 62%, 55%)
oklchoklch(0.591 0.146 259.2)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2038

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#d39d45

#45c3d3 · #5645d3

#d3457c · #7cd345

Split-complementary

Open in tool →

#d35645 · #c3d345

#d345c3 · #d39d45 · #45d356

Contrast

#457cd3 as textRatioAAAA largeAAAFix
Aaon white
4.14:1failpassfail
  • AA: use #3973d0 as the text (4.63:1)
  • AAA: use #2757a5 as the text (7.02:1)
  • AA: or shift the background to #121212 (4.53:1)
Aaon black
5.08:1passpassfail
  • AAA: use #6a96dc as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #457cd3 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

#457cd3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #457cd3
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #457cd3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/457cd3-9ca7c4-df624e-201f2d-e9f0f1?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