Color

#125e91

#125e91
hex#125e91
rgbrgb(18, 94, 145)
hslhsl(204, 78%, 32%)
oklchoklch(0.465 0.108 244.6)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.1018

Colors that go with #125e91

Charcoal, Royal Blue and Sienna 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 →

#914512

#129185 · #121f91

#91125e · #5e9112

Split-complementary

Open in tool →

#91121f · #918512

#851291 · #914512 · #1f9112

Contrast

#125e91 as textRatioAAAA largeAAAFix
Aaon white
6.92:1passpassfail
  • AAA: use #115b8d as the text (7.23:1)
Aaon black
3.04:1failpassfail
  • AA: use #187cbf as the text (4.67:1)
  • AAA: use #2e9ce5 as the text (7:1)
  • AA: or shift the background to #d1d1d1 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #125e91 as the background.

Brands using this color

Fonts for this mood

#125e91 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #125e91
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 #125e91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/125e91-9cafc4-df4e5a-1f222d-e9f1f0?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