Color

#156dac

#156dac
hex#156dac
rgbrgb(21, 109, 172)
hslhsl(205, 78%, 38%)
oklchoklch(0.519 0.126 246.4)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1408

Colors that go with #156dac

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 →

#ac5415

#15aca0 · #1522ac

#ac156d · #6dac15

Split-complementary

Open in tool →

#ac1522 · #aca015

#a015ac · #ac5415 · #22ac15

Contrast

#156dac as textRatioAAAA largeAAAFix
Aaon white
5.5:1passpassfail
  • AAA: use #125c91 as the text (7.08:1)
Aaon black
3.82:1failpassfail
  • AA: use #1879bf as the text (4.53:1)
  • AAA: use #379de6 as the text (7.13:1)
  • AA: or shift the background to #ebebeb (4.62:1)

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

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/156dac-9cafc4-df4e58-1f212d-e9f1f0?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