Color
#166ffe
#166ffergb(22, 111, 254)hsl(217, 99%, 54%)oklch(0.582 0.227 260.5)Colors that go with #166ffe
Charcoal, Crimson and Copper 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 #166ffe: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #166ffe — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Copper #b87333
complementaryshippedCopper sits directly opposite #166ffe on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #166ffe in 8 real palettes, including Walmart's brand system and NBA's brand system, as the accent.
Blue #0000ff
shipped13 real palettes, including MongoDB's brand system and EA's brand system put Blue beside #166ffe, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #166ffe: 13 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 #166ffe: 6 real palettes, including Webflow's brand system and Roblox's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #166ffe: 8 real palettes, including Elastic's brand system and Patreon's brand system, as the supporting colour.
Real palettes that use #166ffe
Tints & shades
Harmonies
Contrast
| #166ffe as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.43:1 | fail | pass | fail | |
Aaon black | 4.74:1 | pass | 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 #166ffe as the background.
Brands using this color
- Elasticaccent · #0d6efd · Δ0.427
- MongoDBsecondary · #006cfa · Δ1.181
- Behanceprimary · #1769ff · Δ1.397
- Squareprimary · #006aff · Δ1.414
- Squareaccent · #006aff · Δ1.414
- Yahooaccent · #0f69ff · Δ1.479
- Ubisoftaccent · #006ef5 · Δ1.533
- Webflowprimary · #146cf4 · Δ1.673
- EAaccent · #0070f3 · Δ1.783
- Vercelaccent · #0070f3 · Δ1.783
- Penpotaccent · #1677ff · Δ1.927
- Rotten Tomatoessecondary · #326af6 · Δ1.95
Fonts for this mood
#166ffe 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 #166ffe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/166ffe-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