Color

#135ea0

#135ea0
hex#135ea0
rgbrgb(19, 94, 160)
hslhsl(208, 79%, 35%)
oklchoklch(0.475 0.127 250.7)
Closest name: Blue Chip (#1d5699)Relative luminance 0.1068

Colors that go with #135ea0

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 →

#a05513

#13a09b · #1317a0

#a0135e · #5ea013

Split-complementary

Open in tool →

#a01317 · #a09b13

#9b13a0 · #a05513 · #17a013

Contrast

#135ea0 as textRatioAAAA largeAAAFix
Aaon white
6.7:1passpassfail
  • AAA: use #125b9b as the text (7.01:1)
Aaon black
3.14:1failpassfail
  • AA: use #1879cd as the text (4.66:1)
  • AAA: use #3f9ae9 as the text (7.01:1)
  • AA: or shift the background to #d4d4d4 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #135ea0 as the background.

Brands using this color

Fonts for this mood

#135ea0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #135ea0
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 #135ea0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/135ea0-9cadc4-df4e51-1f212d-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