Color
#165cf3
#165cf3rgb(22, 92, 243)hsl(221, 90%, 52%)oklch(0.537 0.236 262.7)Colors that go with #165cf3
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 #165cf3: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #165cf3 — 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 #165cf3 in 7 real palettes, including Headspace's brand system and Dropbox's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #165cf3 in 7 real palettes, including Nivea's brand system and NHL'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 #165cf3 in 7 real palettes, including Strava's brand system and PlanetScale's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Red #ff0000
shippedRed is paired with #165cf3 in 5 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 #165cf3 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.
Slate Gray #708090
shippedSlate Gray is paired with #165cf3 in 4 real palettes, including Slate Workspace and Campus, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #165cf3
Tints & shades
Harmonies
Contrast
| #165cf3 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.44:1 | pass | pass | fail |
|
Aaon black | 3.86:1 | 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 #165cf3 as the background.
Brands using this color
Fonts for this mood
#165cf3 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 #165cf3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/165cf3-9ca4c4-df6b4e-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