Color

#256fa7

#256fa7
hex#256fa7
rgbrgb(37, 111, 167)
hslhsl(206, 64%, 40%)
oklchoklch(0.524 0.114 245.6)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1455

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a75d25

#25a79f · #252da7

#a7256f · #6fa725

Split-complementary

Open in tool →

#a7252d · #a79f25

#9f25a7 · #a75d25 · #2da725

Contrast

#256fa7 as textRatioAAAA largeAAAFix
Aaon white
5.37:1passpassfail
  • AAA: use #1e5b8a as the text (7.2:1)
Aaon black
3.91:1failpassfail
  • AA: use #287ab8 as the text (4.57:1)
  • AAA: use #4f9dd8 as the text (7.15:1)
  • AA: or shift the background to #ebebeb (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #256fa7 as the background.

Brands using this color

Fonts for this mood

#256fa7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #256fa7
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 #256fa7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/256fa7-9caec4-df4e56-1f212d-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