Color

#128dba

#128dba
hex#128dba
rgbrgb(18, 141, 186)
hslhsl(196, 82%, 40%)
oklchoklch(0.604 0.117 230.6)
Closest name: steelblue (#4682b4)Relative luminance 0.2272

Colors that go with #128dba

Charcoal, Crimson and Royal Blue 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 →

#ba3f12

#12ba93 · #1239ba

#ba128d · #8dba12

Split-complementary

Open in tool →

#ba1239 · #ba9312

#9312ba · #ba3f12 · #39ba12

Contrast

#128dba as textRatioAAAA largeAAAFix
Aaon white
3.79:1failpassfail
  • AA: use #117fa7 as the text (4.55:1)
  • AAA: use #0c5f7d as the text (7.12:1)
  • AA: or shift the background to #1a1a1a (4.6:1)
Aaon black
5.54:1passpassfail
  • AAA: use #15a2d5 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #128dba as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#128dba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #128dba
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 #128dba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/128dba-9cb5c4-df4e6e-1f232d-e9f1ef?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