Color

#135bec

#135bec
hex#135bec
rgbrgb(19, 91, 236)
hslhsl(220, 85%, 50%)
oklchoklch(0.528 0.229 262.3)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1368

Colors that go with #135bec

Charcoal, Crimson and Amber 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 →

#eca413

#13c8ec · #3713ec

#ec135b · #5bec13

Split-complementary

Open in tool →

#ec3713 · #c8ec13

#ec13c8 · #eca413 · #13ec37

Contrast

#135bec as textRatioAAAA largeAAAFix
Aaon white
5.62:1passpassfail
  • AAA: use #104dc6 as the text (7.24:1)
Aaon black
3.74:1failpassfail
  • AA: use #2f6fee as the text (4.63:1)
  • AAA: use #6896f3 as the text (7.25:1)
  • AA: or shift the background to #e6e6e6 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #135bec as the background.

Brands using this color

Fonts for this mood

#135bec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #135bec
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 #135bec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/135bec-9ca5c4-df694e-211f2d-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