Color

#128bbf

#128bbf
hex#128bbf
rgbrgb(18, 139, 191)
hslhsl(198, 83%, 41%)
oklchoklch(0.601 0.123 234.8)
Closest name: steelblue (#4682b4)Relative luminance 0.2236

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf4612

#12bf9d · #1234bf

#bf128b · #8bbf12

Split-complementary

Open in tool →

#bf1234 · #bf9d12

#9d12bf · #bf4612 · #34bf12

Contrast

#128bbf as textRatioAAAA largeAAAFix
Aaon white
3.84:1failpassfail
  • AA: use #107ead as the text (4.56:1)
  • AAA: use #0c5f83 as the text (7.05:1)
  • AA: or shift the background to #1a1a1a (4.53:1)
Aaon black
5.47:1passpassfail
  • AAA: use #14a0db as the text (7.08:1)

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

Brands using this color

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

Fonts for this mood

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

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

tool url/palettes/new/128bbf-9cb3c4-df4e69-1f232d-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