Color

#128cde

#128cde
hex#128cde
rgbrgb(18, 140, 222)
hslhsl(204, 85%, 47%)
oklchoklch(0.621 0.156 246.4)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2416

Tints & shades

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

Harmonies

Complementary

Open in tool →

#de6312

#12dec9 · #1226de

#de128c · #8cde12

Split-complementary

Open in tool →

#de1226 · #dec912

#c912de · #de6312 · #26de12

Contrast

#128cde as textRatioAAAA largeAAAFix
Aaon white
3.6:1failpassfail
  • AA: use #107ac1 as the text (4.59:1)
  • AAA: use #0c5c92 as the text (7.09:1)
  • AA: or shift the background to #1f1f1f (4.58:1)
Aaon black
5.83:1passpassfail
  • AAA: use #219ced as the text (7.04:1)

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

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

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

tool url/palettes/new/128cde-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