Color

#156ef4

#156ef4
hex#156ef4
rgbrgb(21, 110, 244)
hslhsl(216, 91%, 52%)
oklchoklch(0.572 0.216 259.8)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1784

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f49b15

#15def4 · #2b15f4

#f4156e · #6ef415

Split-complementary

Open in tool →

#f42b15 · #def415

#f415de · #f49b15 · #15f42b

Contrast

#156ef4 as textRatioAAAA largeAAAFix
Aaon white
4.6:1passpassfail
  • AAA: use #0951be as the text (7.16:1)
Aaon black
4.57:1passpassfail
  • AAA: use #5596f7 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #156ef4 as the background.

Brands using this color

Fonts for this mood

#156ef4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #156ef4
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 #156ef4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/156ef4-9ca7c4-df5f4e-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