Color
#2a66fe
#2a66fergb(42, 102, 254)hsl(223, 99%, 58%)oklch(0.569 0.234 263.9)Colors that go with #2a66fe
Charcoal, Crimson and Amber 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 #2a66fe: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #2a66fe — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Amber #ffbf00
shippedAmber is paired with #2a66fe in 7 real palettes, including Mastodon hosted on mastodon.social's brand system and Walmart's brand system, as the accent.
Blue #0000ff
shipped12 real palettes, including MongoDB's brand system and Dropbox's brand system put Blue beside #2a66fe, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #2a66fe: 12 real palettes, including Behance's brand system and Nivea's brand system, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #2a66fe: 6 real palettes, including Roblox's brand system and Webflow's brand system, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #2a66fe: 6 real palettes, including Elastic's brand system and Calm's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #2a66fe: 16 real palettes, including Square's brand system and Fivetran blue's brand system, as the supporting colour.
Real palettes that use #2a66fe
Tints & shades
Harmonies
Contrast
| #2a66fe as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.74:1 | pass | pass | fail |
|
Aaon black | 4.43:1 | 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 #2a66fe as the background.
Brands using this color
- Behanceprimary · #1769ff · Δ1.005
- Yahooaccent · #0f69ff · Δ1.204
- Dockersecondary · #2560ff · Δ1.441
- WWEaccent · #0166ff · Δ1.522
- Squareprimary · #006aff · Δ1.531
- Squareaccent · #006aff · Δ1.531
- Rotten Tomatoessecondary · #326af6 · Δ1.665
- IBMsecondary · #0f62fe · Δ1.724
- MongoDBsecondary · #006cfa · Δ1.88
- Elasticaccent · #0d6efd · Δ1.926
Fonts for this mood
#2a66fe 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 #2a66fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/2a66fe-9ca3c4-df704e-211f2d-e9eff1?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