Color

#5da3fd

#5da3fd
hex#5da3fd
rgbrgb(93, 163, 253)
hslhsl(214, 98%, 68%)
oklchoklch(0.71 0.15 255.5)
Closest name: Cerulean (#55aaee)Relative luminance 0.3561

Colors that go with #5da3fd

Charcoal, Amber and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #5da3fd

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fdb85d

#5df3fd · #685dfd

#fd5da3 · #a3fd5d

Split-complementary

Open in tool →

#fd685d · #f3fd5d

#fd5df3 · #fdb85d · #5dfd68

Contrast

#5da3fd as textRatioAAAA largeAAAFix
Aaon white
2.59:1failfailfail
  • AA: use #026df7 as the text (4.63:1)
  • AAA: use #0252bb as the text (7.17:1)
  • AA: or shift the background to #383838 (4.54:1)
  • AAA: or shift the background to #141414 (7.13:1)
Aaon black
8.12:1passpasspassPasses 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 #5da3fd as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#5da3fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5da3fd
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #5da3fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5da3fd-9ca9c4-df5a4e-1f1f2d-e9f0f1?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