Color

#156de0

#156de0
hex#156de0
rgbrgb(21, 109, 224)
hslhsl(214, 83%, 48%)
oklchoklch(0.554 0.192 258)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1648

Colors that go with #156de0

Charcoal, Crimson and Sienna 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 →

#e08815

#15d2e0 · #2215e0

#e0156d · #6de015

Split-complementary

Open in tool →

#e02215 · #d2e015

#e015d2 · #e08815 · #15e022

Contrast

#156de0 as textRatioAAAA largeAAAFix
Aaon white
4.89:1passpassfail
  • AAA: use #1056b1 as the text (7.03:1)
Aaon black
4.3:1failpassfail
  • AA: use #1671e9 as the text (4.57:1)
  • AAA: use #5799ef as the text (7.21:1)
  • AA: or shift the background to #f7f7f7 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #156de0 as the background.

Brands using this color

Fonts for this mood

#156de0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #156de0
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 #156de0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/156de0-9ca9c4-df5a4e-1f1f2d-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