Color

#156bb7

#156bb7
hex#156bb7
rgbrgb(21, 107, 183)
hslhsl(208, 79%, 40%)
oklchoklch(0.521 0.142 251.1)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1409

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b76115

#15b7b1 · #151bb7

#b7156b · #6bb715

Split-complementary

Open in tool →

#b7151b · #b7b115

#b115b7 · #b76115 · #1bb715

Contrast

#156bb7 as textRatioAAAA largeAAAFix
Aaon white
5.5:1passpassfail
  • AAA: use #125b9b as the text (7.01:1)
Aaon black
3.82:1failpassfail
  • AA: use #1879cd as the text (4.66:1)
  • AAA: use #3f9ae9 as the text (7.01:1)
  • AA: or shift the background to #ebebeb (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #156bb7 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#156bb7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #156bb7
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 #156bb7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/156bb7-9cadc4-df4e51-1f212d-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