Color
#538fee
#538feergb(83, 143, 238)hsl(217, 82%, 63%)oklch(0.654 0.156 259.2)Colors that go with #538fee
Charcoal, Amber 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 #538fee: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #538fee in 4 real palettes, including Heatwave and Blueprint, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Blue #0000ff
shippedBlue is paired with #538fee in 6 real palettes, including Readymag's brand system and Cargo's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #538fee in 6 real palettes, including Blue Mono and Carrefour's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Deep Sky Blue #00bfff
shippedDeep Sky Blue is paired with #538fee in 4 real palettes, including Figma's brand system and Blueprint — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #538fee in 5 real palettes, including Coca-Cola's brand system and Guinness's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #538fee in 5 real palettes, including Blue Mono and Ford's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Tomato #ff6347
triadicshippedTomato completes a triad with #538fee — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Real palettes that use #538fee
Tints & shades
Harmonies
Contrast
| #538fee as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.22:1 | fail | pass | fail | |
Aaon black | 6.53:1 | 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 #538fee as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#538fee 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 #538fee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/538fee-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