Color

#5da8ef

#5da8ef
hex#5da8ef
rgbrgb(93, 168, 239)
hslhsl(209, 82%, 65%)
oklchoklch(0.713 0.129 248.9)
Closest name: Cerulean (#55aaee)Relative luminance 0.3656

Tints & shades

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

Harmonies

Complementary

Open in tool →

#efa35d

#5defec · #5d5fef

#ef5da8 · #a8ef5d

Split-complementary

Open in tool →

#ef5d5f · #efec5d

#ec5def · #efa35d · #5fef5d

Contrast

#5da8ef as textRatioAAAA largeAAAFix
Aaon white
2.53:1failfailfail
  • AA: use #1576d1 as the text (4.62:1)
  • AAA: use #10599e as the text (7.13:1)
  • AA: or shift the background to #383838 (4.64:1)
  • AAA: or shift the background to #171717 (7.1:1)
Aaon black
8.31:1passpasspassPasses 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 #5da8ef 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

#5da8ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5da8ef
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 #5da8ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5da8ef-9cacc4-df4e4e-1f212d-e9f1f1?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