Color

#159bef

#159bef
hex#159bef
rgbrgb(21, 155, 239)
hslhsl(203, 87%, 51%)
oklchoklch(0.666 0.162 244.7)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.2983

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef6915

#15efd5 · #152fef

#ef159b · #9bef15

Split-complementary

Open in tool →

#ef152f · #efd515

#d515ef · #ef6915 · #2fef15

Contrast

#159bef as textRatioAAAA largeAAAFix
Aaon white
3.01:1failpassfail
  • AA: use #0d7bbf as the text (4.56:1)
  • AAA: use #0a5c8f as the text (7.14:1)
  • AA: or shift the background to #2e2e2e (4.51:1)
Aaon black
6.97:1passpassfail
  • AAA: use #1a9def as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #159bef 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

#159bef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #159bef
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 #159bef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/159bef-9cb0c4-df4e5d-1f222d-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