Color
#1f64db
#1f64dbrgb(31, 100, 219)hsl(218, 75%, 49%)oklch(0.534 0.195 260.7)Colors that go with #1f64db
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 #1f64db: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #1f64db — 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 #1f64db in 9 real palettes, including NBA's brand system and Wikipedia's brand system, as the lead colour.
Blue #0000ff
shipped14 real palettes, including Headspace's brand system and BBC's brand system put Blue beside #1f64db, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #1f64db: 14 real palettes, including Unilever's brand system and Nokia's brand system, as the lead colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #1f64db: 7 real palettes, including NBA's brand system and Webflow's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #1f64db: 7 real palettes, including Elastic's brand system and Venmo's brand system, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #1f64db: 8 real palettes, including HashiCorp's brand system and ASUS's brand system, as the supporting colour.
Real palettes that use #1f64db
Tints & shades
Harmonies
Contrast
| #1f64db as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.38:1 | pass | pass | fail |
|
Aaon black | 3.9:1 | 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 #1f64db as the background.
Brands using this color
- HashiCorpprimary · #2264d6 · Δ0.776
- HashiCorpaccent · #2264d6 · Δ0.776
- Loomprimary · #1868db · Δ0.974
- Loomsecondary · #1868db · Δ0.974
- GitHubaccent · #0969da · Δ1.328
- NBAsecondary · #0268d6 · Δ1.499
- Fitbitsecondary · #1967d2 · Δ1.639
- Khan Academyaccent · #0069d6 · Δ1.67
- Foot Lockeraccent · #036ad8 · Δ1.676
- Boxprimary · #0061d5 · Δ1.744
- Boxsecondary · #0061d5 · Δ1.744
- Postmanaccent · #0265d2 · Δ1.763
- Philipssecondary · #0b5ed7 · Δ1.969
- 1passwordaccent · #145fe4 · Δ1.978
Fonts for this mood
#1f64db 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 #1f64db and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/1f64db-9ca6c4-df644e-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