Color

#256dfe

#256dfe
hex#256dfe
rgbrgb(37, 109, 254)
hslhsl(220, 99%, 57%)
oklchoklch(0.581 0.227 262.2)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1849

Tints & shades

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

Harmonies

Complementary

Open in tool →

#feb625

#25dafe · #4925fe

#fe256d · #6dfe25

Split-complementary

Open in tool →

#fe4925 · #dafe25

#fe25da · #feb625 · #25fe49

Contrast

#256dfe as textRatioAAAA largeAAAFix
Aaon white
4.47:1failpassfail
  • AA: use #206afe as the text (4.61:1)
  • AAA: use #0149da as the text (7.08:1)
  • AA: or shift the background to #050505 (4.56:1)
Aaon black
4.7:1passpassfail
  • AAA: use #5d92fe 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 #256dfe as the background.

Brands using this color

Fonts for this mood

#256dfe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #256dfe
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 #256dfe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/256dfe-9ca5c4-df694e-211f2d-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