Color
#0a66fa
#0a66fargb(10, 102, 250)hsl(217, 96%, 51%)oklch(0.56 0.234 260.9)Colors that go with #0a66fa
Charcoal, Crimson 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #0a66fa: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #0a66fa — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Blue #0000ff
shippedBlue is paired with #0a66fa in 7 real palettes, including Dropbox's brand system and MongoDB's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #0a66fa in 8 real palettes, including Behance's brand system and Nivea's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Deep Sky Blue #00bfff
shippedDeep Sky Blue is paired with #0a66fa in 4 real palettes, including Calm's brand system and Astro's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Orange Red #ff4500
shippedOrange Red is paired with #0a66fa in 7 real palettes, including Strava's brand system and Readymag's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Red #ff0000
shippedRed is paired with #0a66fa in 4 real palettes, including Rotten Tomatoes's brand system and Vercel's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Sea Green #2e8b57
shippedSea Green is paired with #0a66fa in 4 real palettes, including Coinbase's brand system and Jack Daniel's's brand system — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #0a66fa
Tints & shades
Harmonies
Contrast
| #0a66fa as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.89:1 | pass | pass | fail |
|
Aaon black | 4.29:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a66fa as the background.
Brands using this color
- WWEaccent · #0166ff · Δ0.761
- Squareprimary · #006aff · Δ1.16
- Squareaccent · #006aff · Δ1.16
- Behanceprimary · #1769ff · Δ1.182
- Dropboxsecondary · #0061fe · Δ1.325
- MongoDBsecondary · #006cfa · Δ1.355
- Dropboxprimary · #0061ff · Δ1.391
- Niveasecondary · #0f60ff · Δ1.493
- Dockersecondary · #2560ff · Δ1.65
- Toyotaaccent · #145fff · Δ1.663
- Webflowprimary · #146cf4 · Δ1.748
Fonts for this mood
#0a66fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #0a66fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/0a66fa-9ca7c4-df624e-201f2d-e9f0f1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md