Color

#135eaa

#135eaa
hex#135eaa
rgbrgb(19, 94, 170)
hslhsl(210, 80%, 37%)
oklchoklch(0.482 0.14 253.6)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1105

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa5e13

#13aaaa · #1313aa

#aa135e · #5eaa13

Split-complementary

Open in tool →

#aa1313 · #aaaa13

#aa13aa · #aa5e13 · #13aa13

Contrast

#135eaa as textRatioAAAA largeAAAFix
Aaon white
6.54:1passpassfail
  • AAA: use #1259a1 as the text (7.07:1)
Aaon black
3.21:1failpassfail
  • AA: use #1775d3 as the text (4.52:1)
  • AAA: use #4799eb as the text (7.02:1)
  • AA: or shift the background to #d6d6d6 (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 #135eaa as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/135eaa-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