Color

#154cef

#154cef
hex#154cef
rgbrgb(21, 76, 239)
hslhsl(225, 87%, 51%)
oklchoklch(0.505 0.248 264.2)
Closest name: C64 Blue (#003aff)Relative luminance 0.1156

Tints & shades

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

Harmonies

Complementary

Open in tool →

#efb815

#15b8ef · #4c15ef

#ef154c · #4cef15

Split-complementary

Open in tool →

#ef4c15 · #b8ef15

#ef15b8 · #efb815 · #15ef4c

Contrast

#154cef as textRatioAAAA largeAAAFix
Aaon white
6.34:1passpassfail
  • AAA: use #1044e0 as the text (7.18:1)
Aaon black
3.31:1failpassfail
  • AA: use #406df2 as the text (4.69:1)
  • AAA: use #7091f5 as the text (7.06:1)
  • AA: or shift the background to #dbdbdb (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #154cef 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

#154cef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #154cef
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 #154cef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/154cef-9ca1c4-df754e-221f2d-e9eff1?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