Color

#0057d1

#0057d1
hex#0057d1
rgbrgb(0, 87, 209)
hslhsl(215, 100%, 41%)
oklchoklch(0.495 0.201 260)
Closest name: Denim (#2243b6)Relative luminance 0.1142

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d17a00

#00c0d1 · #1100d1

#d10057 · #57d100

Split-complementary

Open in tool →

#d11100 · #c0d100

#d100c0 · #d17a00 · #00d111

Contrast

#0057d1 as textRatioAAAA largeAAAFix
Aaon white
6.39:1passpassfail
  • AAA: use #0051c2 as the text (7.1:1)
Aaon black
3.28:1failpassfail
  • AA: use #006aff as the text (4.51:1)
  • AAA: use #4d97ff as the text (7.19:1)
  • AA: or shift the background to #d9d9d9 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0057d1 as the background.

Brands using this color

Fonts for this mood

#0057d1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0057d1
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 #0057d1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0057d1-9ca8c4-df5d4e-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