Color

#5a99f2

#5a99f2
hex#5a99f2
rgbrgb(90, 153, 242)
hslhsl(215, 85%, 65%)
oklchoklch(0.681 0.148 257.3)
Closest name: cornflowerblue (#6495ed)Relative luminance 0.3137

Colors that go with #5a99f2

Charcoal, Medium Sea Green and Tomato 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 #5a99f2

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f2b25a

#5ae5f2 · #675af2

#f25a99 · #99f25a

Split-complementary

Open in tool →

#f2675a · #e5f25a

#f25ae5 · #f2b25a · #5af267

Contrast

#5a99f2 as textRatioAAAA largeAAAFix
Aaon white
2.89:1failfailfail
  • AA: use #1870ec as the text (4.6:1)
  • AAA: use #0f53b3 as the text (7.22:1)
  • AA: or shift the background to #303030 (4.57:1)
  • AAA: or shift the background to #050505 (7.06:1)
Aaon black
7.27:1passpasspassPasses 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 #5a99f2 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

#5a99f2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a99f2
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 #5a99f2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a99f2-9ca8c4-df5d4e-201f2d-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