Color

#256af4

#256af4
hex#256af4
rgbrgb(37, 106, 244)
hslhsl(220, 90%, 55%)
oklchoklch(0.567 0.218 262.1)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1723

Colors that go with #256af4

Charcoal, Crimson 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 →

#f4af25

#25d1f4 · #4725f4

#f4256a · #6af425

Split-complementary

Open in tool →

#f44725 · #d1f425

#f425d1 · #f4af25 · #25f447

Contrast

#256af4 as textRatioAAAA largeAAAFix
Aaon white
4.72:1passpassfail
  • AAA: use #0b4dd0 as the text (7.03:1)
Aaon black
4.45:1failpassfail
  • AA: use #2a6df4 as the text (4.59:1)
  • AAA: use #6495f7 as the text (7.18:1)
  • AA: or shift the background to #fafafa (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #256af4 as the background.

Brands using this color

Fonts for this mood

#256af4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #256af4
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 #256af4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/256af4-9ca5c4-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