Color
#0f66d2
#0f66d2rgb(15, 102, 210)hsl(213, 87%, 44%)oklch(0.528 0.183 257.6)Colors that go with #0f66d2
Charcoal, Crimson and Sienna 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 #0f66d2: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #0f66d2 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #0f66d2 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 #0f66d2 in 10 real palettes, including NBA's brand system and Wikipedia's brand system, as the lead colour.
Blue #0000ff
shipped16 real palettes, including Pixar's brand system and Headspace's brand system put Blue beside #0f66d2, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #0f66d2: 13 real palettes, including Unilever's brand system and Intel's brand system, as the lead colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #0f66d2: 7 real palettes, including NBA's brand system and Coca-Cola's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #0f66d2: 7 real palettes, including Venmo's brand system and Astro's brand system, as the supporting colour.
Real palettes that use #0f66d2
Tints & shades
Harmonies
Contrast
| #0f66d2 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.45:1 | pass | pass | fail |
|
Aaon black | 3.85:1 | 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 #0f66d2 as the background.
Brands using this color
- Postmanaccent · #0265d2 · Δ0.458
- Fitbitsecondary · #1967d2 · Δ0.498
- NBAsecondary · #0268d6 · Δ0.764
- Khan Academyaccent · #0069d6 · Δ0.928
- Appleaccent · #0066cc · Δ1.036
- Dysonaccent · #0066cc · Δ1.036
- Unileveraccent · #0066cc · Δ1.036
- HashiCorpprimary · #2264d6 · Δ1.114
- HashiCorpaccent · #2264d6 · Δ1.114
- Foot Lockeraccent · #036ad8 · Δ1.298
- GitHubaccent · #0969da · Δ1.393
- Boxprimary · #0061d5 · Δ1.506
- Boxsecondary · #0061d5 · Δ1.506
- Loomprimary · #1868db · Δ1.544
- Loomsecondary · #1868db · Δ1.544
- Stravaaccent · #0060d0 · Δ1.702
- YouTubeaccent · #065fd4 · Δ1.896
Fonts for this mood
#0f66d2 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 #0f66d2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/0f66d2-9ca9c4-df584e-1f202d-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