Color

#135ca4

#135ca4
hex#135ca4
rgbrgb(19, 92, 164)
hslhsl(210, 79%, 36%)
oklchoklch(0.473 0.134 253)
Closest name: Blue Chip (#1d5699)Relative luminance 0.1047

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a45c13

#13a4a4 · #1313a4

#a4135c · #5ca413

Split-complementary

Open in tool →

#a41313 · #a4a413

#a413a4 · #a45c13 · #13a413

Contrast

#135ca4 as textRatioAAAA largeAAAFix
Aaon white
6.79:1passpassfail
  • AAA: use #1359a0 as the text (7.08:1)
Aaon black
3.09:1failpassfail
  • AA: use #1975d2 as the text (4.52:1)
  • AAA: use #4899ea as the text (7.02:1)
  • AA: or shift the background to #d4d4d4 (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 #135ca4 as the background.

Brands using this color

Fonts for this mood

#135ca4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #135ca4
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 #135ca4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/135ca4-9cabc4-df514e-1f202d-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