Color

#128fc4

#128fc4
hex#128fc4
rgbrgb(18, 143, 196)
hslhsl(198, 83%, 42%)
oklchoklch(0.614 0.126 234.5)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2376

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c44812

#12c4a0 · #1236c4

#c4128f · #8fc412

Split-complementary

Open in tool →

#c41236 · #c4a012

#a012c4 · #c44812 · #36c412

Contrast

#128fc4 as textRatioAAAA largeAAAFix
Aaon white
3.65:1failpassfail
  • AA: use #107ead as the text (4.56:1)
  • AAA: use #0c5f83 as the text (7.05:1)
  • AA: or shift the background to #1f1f1f (4.51:1)
Aaon black
5.75:1passpassfail
  • 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 #128fc4 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

#128fc4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #128fc4
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 #128fc4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/128fc4-9cb3c4-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