Color

#129ff8

#129ff8
hex#129ff8
rgbrgb(18, 159, 248)
hslhsl(203, 94%, 52%)
oklchoklch(0.679 0.168 245.4)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.317

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f86a12

#12f8dd · #122cf8

#f8129f · #9ff812

Split-complementary

Open in tool →

#f8122c · #f8dd12

#dd12f8 · #f86a12 · #2cf812

Contrast

#129ff8 as textRatioAAAA largeAAAFix
Aaon white
2.86:1failfailfail
  • AA: use #0679c1 as the text (4.65:1)
  • AAA: use #055d94 as the text (7:1)
  • AA: or shift the background to #303030 (4.61:1)
  • AAA: or shift the background to #080808 (7:1)
Aaon black
7.34:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #129ff8 as the background.

Brands using this color

Fonts for this mood

#129ff8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #129ff8
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 #129ff8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/129ff8-9cb0c4-df4e5d-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